Your findings on IRT pressure balance are similar to what I've found. At 170lbs, I find that 58Main/120IRT is my perfect balance for max support without any unwanted transition feedback.
Also worth mentioning for anyone considering these forks or upgrading:
The new low friction seals that Manitou offers give the fork outstanding small bump compliance, even several months after a service. After installing the new seals my fork remains feeling like it's just had a fresh service, but I've been riding on it for 3 months in the sloppiest of conditions. If you have a Mattoc without the new seals, you need them. Straight up.
Jan. 15, 2018, 10:25 a.m. - Mammal
Your findings on IRT pressure balance are similar to what I've found. At 170lbs, I find that 58Main/120IRT is my perfect balance for max support without any unwanted transition feedback. Also worth mentioning for anyone considering these forks or upgrading: The new low friction seals that Manitou offers give the fork outstanding small bump compliance, even several months after a service. After installing the new seals my fork remains feeling like it's just had a fresh service, but I've been riding on it for 3 months in the sloppiest of conditions. If you have a Mattoc without the new seals, you need them. Straight up.