diff --git a/common/ruletypes.h b/common/ruletypes.h
index e7817f4bb..4acd79dbd 100644
--- a/common/ruletypes.h
+++ b/common/ruletypes.h
@@ -174,6 +174,8 @@ RULE_INT(Character, ResurrectionSicknessSpellID, 756, "756 is Default Resurrecti
 RULE_BOOL(Character, EnableBardMelody, true, "Enable Bard /melody by default, to disable change to false for a classic experience.")
 RULE_BOOL(Character, EnableRangerAutoFire, true, "Enable Ranger /autofire by default, to disable change to false for a classic experience.")
 RULE_BOOL(Character, EnableTGB, true, "Enable /tgb (Target Group Buff) by default, to disable change to false for a classic experience.")
+RULE_INT(Character, SkillUpMaximumChancePercentage, 25, "Maximum chance to improve a combat skill, before skill-specific modifiers.  This should be greater than SkillUpMinimumChancePercentage.")
+RULE_INT(Character, SkillUpMinimumChancePercentage, 2, "Minimum chance to improve a combat skill, after skill-specific modifiers.  This should be lesser than SkillUpMaximumChancePercentage.")
 RULE_INT(Character, WarriorTrackingDistanceMultiplier, 0, "If you want warriors to be able to track, increase this above 0.  0 disables tracking packets.")
 RULE_INT(Character, ClericTrackingDistanceMultiplier, 0, "If you want clerics to be able to track, increase this above 0.  0 disables tracking packets.")
 RULE_INT(Character, PaladinTrackingDistanceMultiplier, 0, "If you want paladins to be able to track, increase this above 0.  0 disables tracking packets.")
diff --git a/zone/client.cpp b/zone/client.cpp
index 7a1a43d65..2857f86db 100644
--- a/zone/client.cpp
+++ b/zone/client.cpp
@@ -2422,7 +2422,7 @@ bool Client::CheckIncreaseSkill(EQ::skills::SkillType skillid, Mob *against_who,
 		return false;
 	if (skillid > EQ::skills::HIGHEST_SKILL)
 		return false;
-	int skillval = GetRawSkill(skillid);
+	int skillval = GetRawSkill(skillid);	
 	int maxskill = GetMaxSkillAfterSpecializationRules(skillid, MaxSkill(skillid));
 	std::string export_string = fmt::format(
 		"{} {}",
@@ -2447,23 +2447,26 @@ bool Client::CheckIncreaseSkill(EQ::skills::SkillType skillid, Mob *against_who,
 	// Make sure we're not already at skill cap
 	if (skillval < maxskill)
 	{
-		// the higher your current skill level, the harder it is
-		int32 Chance = 10 + chancemodi + ((252 - skillval) / 20);
-
-		Chance = (Chance * RuleI(Character, SkillUpModifier) / 100);
-
-		Chance = mod_increase_skill_chance(Chance, against_who);
-
-		if(Chance < 1)
-			Chance = 1; // Make it always possible
+		double Chance = 0;		
+		if (RuleI(Character, SkillUpMaximumChancePercentage) + chancemodi - RuleI(Character, SkillUpMinimumChancePercentage) <= RuleI(Character, SkillUpMinimumChancePercentage)) {
+			Chance = RuleI(Character, SkillUpMinimumChancePercentage);
+		}
+		else {
+			// f(x) = (max - min + modification) * .99^skillval + min
+			// This results in a exponential decay where as you skill up, you lose a slight chance to skill up, ranging from your modified maximum to approaching your minimum
+			// This result is increased by the existing SkillUpModifier rule
+			double working_chance = (((RuleI(Character, SkillUpMaximumChancePercentage) - RuleI(Character, SkillUpMinimumChancePercentage) + chancemodi) * (pow(0.99, skillval))) + RuleI(Character, SkillUpMinimumChancePercentage));
+			Chance = (working_chance * RuleI(Character, SkillUpModifier) / 100);
+			Chance = mod_increase_skill_chance(Chance, against_who);
+		}
 
 		if(zone->random.Real(0, 99) < Chance)
 		{
 			SetSkill(skillid, GetRawSkill(skillid) + 1);
-			LogSkills("Skill [{}] at value [{}] successfully gain with [{}]% chance (mod [{}])", skillid, skillval, Chance, chancemodi);
+			LogSkills("Skill [{}] at value [{}] successfully gain with [{}] chance (mod [{}])", skillid, skillval, Chance, chancemodi);
 			return true;
 		} else {
-			LogSkills("Skill [{}] at value [{}] failed to gain with [{}]% chance (mod [{}])", skillid, skillval, Chance, chancemodi);
+			LogSkills("Skill [{}] at value [{}] failed to gain with [{}] chance (mod [{}])", skillid, skillval, Chance, chancemodi);
 		}
 	} else {
 		LogSkills("Skill [{}] at value [{}] cannot increase due to maxmum [{}]", skillid, skillval, maxskill);
diff --git a/zone/client.h b/zone/client.h
index 598d12f6a..4962d1e8f 100644
--- a/zone/client.h
+++ b/zone/client.h
@@ -1566,7 +1566,7 @@ public:
 	int mod_client_damage(int damage, EQ::skills::SkillType skillinuse, int hand, const EQ::ItemInstance* weapon, Mob* other);
 	bool mod_client_message(char* message, uint8 chan_num);
 	bool mod_can_increase_skill(EQ::skills::SkillType skillid, Mob* against_who);
-	int16 mod_increase_skill_chance(int16 chance, Mob* against_who);
+	double mod_increase_skill_chance(double chance, Mob* against_who);
 	int mod_bindwound_percent(int max_percent, Mob* bindmob);
 	int mod_bindwound_hp(int bindhps, Mob* bindmob);
 	int mod_client_haste(int h);
diff --git a/zone/mod_functions.cpp b/zone/mod_functions.cpp
index b4951f76d..5091da606 100644
--- a/zone/mod_functions.cpp
+++ b/zone/mod_functions.cpp
@@ -61,7 +61,7 @@ bool Client::mod_client_message(char* message, uint8 chan_num) { return(true); }
 bool Client::mod_can_increase_skill(EQ::skills::SkillType skillid, Mob* against_who) { return(false); }
 
 //chance of general skill increase, rolled against 0-99 where higher chance is better.
-int16 Client::mod_increase_skill_chance(int16 chance, Mob* against_who) { return(chance); }
+double Client::mod_increase_skill_chance(double chance, Mob* against_who) { return(chance); }
 
 //Max percent of health you can bind wound starting with default value for class, item, and AA bonuses
 int Client::mod_bindwound_percent(int max_percent, Mob* bindmob) { return(max_percent); }