Originally Posted by
Ex Pres
if I understand correctly, you're using a 6s shifter? The 7s freewheel wasn't going to work, as it has 5mm cog spacing. A 6s shifter shifts ~5.5mm cog spacing.
But you could use a 7s shifter with a 6s ultra-spaced freewheel. I'm setting up one of those right now.
I think the answer is friction shifting with a 6-spd FW. That's what I would do...