I am interested in getting back into trap shooting. I started a few years ago with a field gun but want to upgrade to a BT99. Is there any reason to stay away from the older 70's guns? Have they upgraded the new BTs so that I should wait until I can find one of those? I need a 32" barrel, but when did they start back-boring? Is it important and can I have it done later? How much does it cost? What features are the most important for trap shooting? I could sure use some advise and of course a BT99.