CMP is my home track and can confirm will hit fuel starve at 3/4 tank at turn 12/13 consistently. Once I moved over to 200tw (Kumho V730) and could run 1:45s or better I noticed this problem.
Agree R3 works but not advised on ceramic coatings.
@tomfree I do not as I got it in a kit but could try emailing them. The kit does say the solvent is good for 2 yrs and paint is good for 1 yr.
I accidentally discovered that the Pink solvent in Dr Color Chip kit gets rid of rubber like its butter. Quarter sized on a microfiber towel and reapply to towel as needed. No elbow grease required.
Installed MHD Flex Fuel kit I got from @clema91. Tested both 93 pump gas (showed 9-10% ethanol) and 5 gallons of e85 resulting in a e37 mixture. First logs looked good with both runs having 0 timing corrections vs standalone pump or e40 maps having 2-4 deg of timing pulled when last tested.
What you mentioned pretty much. My 60-130 times were within 0.2s of each other when doing NLS or not with normal shifting winning out most the time. Logs confirmed a loss of boost still between shifts with NLS which kinda defeats the purpose.