The chainrings are the same size - 42 through 22. I went from an 11 or 12 to 28 cassette to the present 12 - 32. The chain was sized using the big ring to big ring plus one link method (2 links was too slack). The RD is a Deore LX long cage and has more than enough capacity. There were no issues shifting the set up on the stand and the problem only shows itself while on the road.

I'm going to measure up the chain line. I gave it a rough wag when I installed the crankset and it came out to around 48-50 mm. There is some slop in the FD mech. That may be a contributing factor as well. Al