Hi guys I am trained in bio sculpture but I have a couple of questions if anyone can help me? I was always taught to do natural coloured gel overlays with clear gel as base, coloured gel then s g then high gloss top coat just the other day I did this to myself and the nails have cracked- I rang bio and they said to use sealer gel then uv top coat, this seems to have worked, however my question is -if the coloured gel cracks on a flexible thin nail without a flexible top coat, how does someone with thin flexible nails achieve a hard result with colour? I know s gel is the hard gel but it makes coloured overlays crack on thin flexiable nails?? any ideas? thanks