Rocketon
.040 Over
I have gone down the bigger battery route and it has also made no difference. I have a new theory. It sounds like the starter motor is sluggish on start up. Has anyone had the starter motor off and checked for pinched bearings when it is cold? If I had a spare starter I would place it outside in a bag and on a particular cold morning when the Rocket won't start, get the starter out of the bag and see if it is harder to spin by hand than when it is warm. If there is a tolerance fit to any part of the starter the materials that it is made of may contract enough to tighten components. Just a theory but I have tried about everything else. :? 8)