Hi and thanks. I've had to snip them about in the past to accommodate extra wide thumbs, but was unsure about what to do in order to deal with pronounced c curves. I'm definitely going to give it a go.
Have skimmed through this thread, did you find a form that you liked?
I sculpt every time now and always use CND clear performance forms. Hate the horseshoe & rectangular forms. I quite like the blue performance forms but found they stuck to the client's skin better than to themselves so they came unstuck quite easily but then were a pain to take off. I tried the clear ones when I started doing Brisa and found they were more sturdy, the corners stuck well to hold the shape and they don't superglue themselves to the client. Yes they sometimes need a trim to tuck in properly but I've never come across a form that didn't need a trim for certain clients anyway. They are all I use now.