Have run mine at Pod twice and Inters once with a total of about 12 runs in the Ed30 and never had a problem in the 22k it's done now. But it doesn't really get driven hard 90% of the rest of the time, so probably equals out nicely..
If you have DSG Billyboy, then I would do (like me) about 4-5 runs and leave it at that, as unless you proper light up, your times will be consistant as can be... So not much point in trying to get a big improvement, as propably won't happen..
The only reason i may do a few more runs is if people want to run against me..