F4 hoki - any thoughts

Hi there
Im considering a 2nd hand f4 hoki rig
Ive only found a single review on this site and very little elsewhere online.
Some very light marketing material from F4 that doesnt include any good shots of the wing from front on etc
I know f4 are well known for windfoil gear and good construction and quality from windsurf pedigree but would value a little more Intel on the masts and foils - how they ride
I believe they are California/ san fran based ? Perhaps folk from that part of the world have some experience ?
Many thanks in adcance for any insights