Adjust Service Module CoMOffset

Based on @Kerbas-ad-astra, @Starwaster and forum user StevieC's consensus.

Author: sumghai

GameData/SDHI/Service Module System/Parts/SDHI_2.5_ServiceModule/ServiceModule.cfg

@@ -38,7 +38,7 @@ PART
 	attachRules = 1,0,1,1,1
 	stackSymmetry = 1
 
-	CoMOffset = 0, -0.2, 0
+	CoMOffset = 0, -0.6, 0
 
 	mass = 1.1
 	dragModelType = default