Could you explain exactly what the problem is?
I know the term roll stability in technical terms, and have read on occasion some using it in this forum.
If you have a higher span foil, it will of course be more roll stable.
When is it you experience "low" roll stability, and a problem?
In tacks with low speeds almost stalled, that it turns sideways and drops, or???
I havent experienced a foil tumbling sideways myself, no matter how small or narrow, thats why I ask.
So curious as to what you guys experience, and what you dont like since you want "less" roll?
I want more "roll" (= turning actually) in mine, but this is for carving fun and waves.
Where a shorter span, shorter mast, smaller stab - improves the turning (roll?)
I am not good at tacking - is it a tack specific issue we are talking about, where the board tilts sideways?
Peter