http://vortekproducts.com/ourstore/Airgun_Tune_Kits?product_id=223 I was thinking about picking up a new AA TX200 HC in the near future. Does anyone have experience with this kit ? I am still on the rocks about .22 or .177 at the moment. Is there another kit that I should also look at considering ? I am not new to the shooting sports but fairly new to air rifles. Owned some cheapies as a child but looking to put together a lightly modded springer. Would this drop in kit be considered more for .22 than .177 or does that even matter ?