I shoot a BPS Invector plus with a 28" barrel. I have tried many chokes over the years and since Winchester came out with the Longbeards I have switched back to the very first turkey choke I bought for this gun. It is the Undertaker .665" non ported choke. I found with the Longbeards it threw the best pattern for me.
This was a lasered 32 yds.
Hope this helps you out somewhat.