All I can say , let im go through the mountains here all day doing that
you loose to much momentum doin all that fancy shiftin . Give me a 13 speed RR with the air shift any day . Ed , don't understand the air shifting issue while rockin it
unless they gave you worn out baby motors . I never had issues with any of them I drove , from a 549 IH gasser with a 6613 to 400 BC cummins with a 13 .