1K miles is not run in dude, my SE engine was tight and lazy until she passed the 30K mark, then all hell broke loose
Nigel and Jags will always map a car to the best they feel they can warrant, yeah I'm sure more power can be had with more timing advance, but its a dangerous game guys, reputations are priceless
Mapping matra, adjust to peak , then back of a couple of %, just to be on the safe side, all it would take is a some shite fuel , and with the engine tuned for super pooper unleaded, the whole thing could shat itself without warning.
Cant fault that mentality.
I'm sure once the miles rack up, everything will come back into focus, have you spoken to Bexleys since taking the car back ? I'm sure if you're not 100% they'll gladly run through the what/why/whens with ya.
My experience is a drop in the ocean compared to Nigel and Jags, speak to them about your concerns
