diff --git a/src/endWeek/shared/physicalDevelopment.js b/src/endWeek/shared/physicalDevelopment.js
index 723147bc425e3c3a2c99f2bdf043bec813ddc300..c8b6d504ee25de56d6c18e02a213d41d674ffedd 100644
--- a/src/endWeek/shared/physicalDevelopment.js
+++ b/src/endWeek/shared/physicalDevelopment.js
@@ -176,8 +176,8 @@ App.EndWeek.Shared.physicalDevelopment = function(actor, player = false) {
 			gigantomastiaMod = 1;
 		}
 		let hormoneMod = actor.hormoneBalance <= -100 ? 0 : Math.min(1 + Math.trunc(actor.hormoneBalance / 100) / 10, 1.4); // Forbid 500 hormone balance from being special. It is not.
-		const growthTarget = actor.natural.boobs * gigantomastiaMod * hormoneMod * random(0.9, 1.1);
-		const implantsHinder = actor.boobsImplant === 0 ? 1 : actor.boobsImplant / actor.boobs; // Implants disrupt growth.
+		const growthTarget = actor.natural.boobs * gigantomastiaMod * hormoneMod * (random(90, 110) / 100);
+		const implantsHinder = actor.boobsImplant === 0 ? 1 : 1 - (actor.boobsImplant / actor.boobs); // Implants disrupt growth.
 		const growthRange = Math.max(18 - actor.pubertyAgeXX, 6); // growth range puberty to 18? 12 should be the starting point otherwise you end up with the possibility of way too much growth in just a few years.
 		const expectedGrowth = growthTarget / growthRange;
 		if (unalteredBoobs < growthTarget) {