Thanks Roger. Yes the 147 sounds like an amazing board.
What sails do you use on the 111? I'm interested to know if it would take my 7.5 if it was too lumpy on the Go170 while at the same time being good for my 6.3. I think the 121 is getting too big as I know I will have trouble with it in solid 6.3 conditions. Where I sail the chop never gets above a couple of feet at most but it does get steep and close together, and depending on wind direction, can be at an awkward angle.