It's frustrating because the picosearch shows the threads, but you just can't open them. I'm surprised a long term database could not have been created.
Thanks for the offer of assistance. Will do if I think of anything.
So far, my 8.5 HSM Speedfreak is the nicest sail on it. I have tried my 10.0 Speedfreak but I made the mistake of using my 46cm fin from my 2014 Go141 and it was way over-finned when powered, and a horrible ride.
I also used the 34cm fin with my 7.5, which felt tiny compared to my other boards, and I spun out alot, but when it worked, it worked well. I need to get rid of my lead foot :-)