When a stabilizer is WAAAY too big, you won,t lift, learned that from building a 50% bigger one myself for my first foil, that original Naish thing (forgot the name)
In general, an big stab will be more straight lined/hard to turn, extremely stable/predictable in the pitch and sometimes create more lift/frontfoot pressure as you want when speed increasing, but unless you use some crazy numbers everything is usable. It could be better in balance/ different performance, but that is very much up on what you are looking for.When I was using SAB foils and really beginner/intermediate stage, I loved the stability and predictability of my big 483 stab. I bought the 399 but at that stage it was too twitchy and too difficult to control the pitch. So at that moment the 483 might be too big for an more experienced rider, but it suited me back then very well.I learned and progressed a lot (had an 425 stab in between that helped a lot) and nowadays the 399 is the biggest stab I got and usually I,m on smaller ones enjoying the lifeness, less drag/more speed and being able to use the twitchiness to turn tighter and faster while having no problems with the less pitch control.
