Perfect Plastic, waay more useable, & lots of how to's on their website:
Can be used 'dry', or shaped wet, dries hard, carves, drills, sands, takes paint, etc., whereas the VJ... doesn't
I don't get on with VJ putty, doesn't go where I want, shrinks, & doesn't sand well..
About UKP£4.00-£5.00 for 40ml vs. UKP£3.00-ish for 11ml? so cheaper as well,