RE: iSonic 122 for Ian
The real decider here will be how much you really want to chase after the GPS speeds (vs regular sailing) - and in turn what % of time you will be in the best of those peak conditions.
Assuming a general mix of 8.2+6.8m conditions for a 190cm/96kg rider, for allround slalom (powered hi speed "flat" water blasting) board, you will stuggle to find a better single board choice than the iS122, or the iS111 if you were significantly towards the powered end of that range more often.
However, as soon as someone starts saying they are " not interested to participate in slalom comps but more for GPS runs (lake, open sea)", it's definitely worth to consider that for GPS speeds ( basically "peak" speed runs, most riders seriously tuning (and selecting equipment) for such runs take a more radical approach than normal "slalom". Here the compromise thickens.. The "best board" for the conditions, or the "fastest board". Initially, it may be the same thing, but like every compromise that makes up our sport, it depends on how far you want to take it...
In iS terms, the best GPS results for a 190cm/96kg rider on a powered 6.8m on flatter water would almost certainly come from iS87, however that combo certainly would NOT be the best allround one, and would lag significantly in general sailing versatility, "early" planing, acceleration, upwind, lulls and overall range etc..Generally not ideal, but if big numbers on the display are your main reason for getting wet, then that is the way to start thinking.
No doubt that is an extreme example, but thrown in to highlight the "compromise" factor required to be balanced between selecting boards for general "slalom" (where versatile speed is king) - and the more dedicated GPS/speed tuning (where versatility and practicality is often compromised - and sometimes significantly - all in the chase for those good few seconds).
So, back to where we started to decipher the compromise % ...
"The real decider here will be how much you really want to chase after the GPS speeds (vs regular sailing) - and in turn what % of time you will be in the best of those peak conditions."
Cheers ~ Ian