Gamo Silent Cat tune

Hello,
This is my first post. I have had a gamo Silent Cat for a year now and love it. It has a new (recently mounted) UTG mil-dot scope 4x30 I believe and just recently it started shooting incredibly bad after I mounted the scope. Long story short I was sighting in the new scope @ 25 yrds and noticed I couldn't get any consistentcy from the gun and penetration was weak. It just so happens that I tore the rifle down and discovered the spring broke (and I thought the scope was junk). So now its tore down completely and I ordered a Gamo Express tune package from airrifleheadquarters. It includes the E3650 spring, seals, tar and moly for $50. While it's apart I plan on giving the internals a slight polish/debur. Can't wait to get it all back together.
 
Dude I have a few ha ha. I have the original, a couple no namers that I ordered off amazon (didn't like) andy last one which worked really well was a 3x9x40 Bushnell off my 30.06 Remington. I know springers tend to destroy regular rifle scopes and it did knock the lens out of the Bushnell. I superglued it back in and it worked. I just got the UTG because its a scope made for a springer. Can't wait to get my gun back together and see how it holds up.