727 Rebuild: Some Questions

Thx for reply - much appreciated.

I'm leaning toward the hughes 2500 converter. It sounds like the blocker would increase the 1-2 firmness, already increased by the TF-2 kit. OTOH, by softening the 1-2, the spring might counteract the TF-2 effects. Given the 2 choices, seems like using the spring might be the best option if I don't want a harsh 1-2?