preference over flex curve or snap track?

[MrDuane]

I'm getting ready for list of supplies, and wonder is it better to go flex on my curves, or get the pre formed arcs to keep radius turns correct? is there a general consensus on this? and if you go flex, is it better to pre-bend the one loose rail like choo choo does for his tight radii? I'm just going 22"R and 18"R.,

[tankist]

your call. i'm using flex without pre bending anything