number5isalive
XXX
I have been running a 14/18 concord with a short pump cone and have just purchased a new prop from Impros that Dave is getting made for him that is 13/15 set back with a big hub. He has called it the Ripper but I think he is changing the name of it, it improved the bottom end but it might be spinning the prop just a little off the bottom so might try it without the short cone?