Hi sheepfarmer, u have been so helpful with questions on regens, i thought maybe u could help clarify something for me. I have the l3560, like u do. I have the hst and i understand the rpm being raised to satisfy the requirement, but what do u mean as far as putting it in manual from auto throttle. I am expecting my first regen soon and just want to know how to do that. I read in the manual about the rpm deal, but nothing about putting it in manual...how is that done...or can it be done on the hst. Thanks so much for your help!!