I've got the zone VI mod. 1.It does not have the vc head though,that would be great.With the head I have I'm restricted to using graded paper. The model 2 have some improvements . Never used the vc head but would like to have one.I like mine as I have the compensating timer .Steve Anchell wrote a write up on this enlarger in the July 1993 issue of Camera and darkroom.