First off, you shouldn't be shooting those pellets through a Kick's GT. Read the back of the package (FOR LEAD SHOT ONLY). Glad your results are at least decent, but if you don't want to be buying $70 tubes, then I'd stop shooting those $5 shells through them.

Secondly, glad you got lucky with that 55 yard IC shot. Some guns shoot better with more open chokes. That FC wad probably helped you out a good bit.

#3: Right, you should not be shooting a choke that is ported with FC wads. They will shoot just fine, however you are going to get a bunch of plastic junk in your tube, and it kind of defeats the purpose of having those FC wads.

#4: I'd get a pure gold tube. Has a 30-day 100% satisfaction guarentee. If you don't like the results for any reason, they will refund you in full within 30 days of your purchase. So you will either have a $70 tube that you love, or you will be out a few dollars for shells and none the worse off otherwise. I shoot Winchester Supreme Elite 3.5 #6s through mine and it outshoots everything I have ever tested, except one or two 10 gauges.

#5: Put on your boots, because the ethics police will likely show up soon and chastise your 50 and 60 yards shots. Bon chance!