TCAS in VFR
TCAS 1 is fitted to our little turboprop, and we always fly VFR. The TCAS 1 is the simple one, I think the later TCAS 3 tells you whether to climb or descend.
Anyway, we generally use it as an aid to looking out the (small) windows. The fact that few light aircraft bother to use their transponder, if fitted, means total reliance on TCAS is unwise.
Personally I think a bubble canopy and a decent roll rate is the way to go.
Fatty