Hey there.
Mostly I've been using the Kenworths. My issue is when I'm at max gear, max speed, with RPMs up in 2,000. On average how much do I have to let them fall? I know when at 1,500 I can let them fall to 1000, bring them up to around 1,500, then down shift. The issue is when my RPMs are maxed in the last gear 7 L, or 7 H. I'm guessing allowing them to fall at 1,500, and then bringing them up to 2,000 for a downshift is just too high? That's what I'm trying to figure out.