@Sat-Chit-ananda Ah I was having a doubt if it was so. He's done the tuning after extensive tests on MJD engines. He's had done a similar thing for his friend's swift which has run 20,000 odd kms with these remaps. This guy is quite knowledgeable. But thanks for the word of caution. I'll double check with him, but I assume such a competent tuner/coder as himself would have kept such parameters in mind as well. You mentioned it takes you 15 mts to load a new map. Do you have a similar setup?