Many thanks for the advice.
I'm stuck out in the Arabian Gulf & don't get to see the items in the flesh.
choice seems to be between 4 Darts or 6 Topaz on the prices I've been quoted. Topaz looks remarkable value
Most the sailors will be converting from dinghy ( like myself )
havent had a price for the wave yet , but it looks a bit smaller , some will want to be out there with several kids so extra space may be significant.