i think its just as easy as time/experiance with your mapper

ava done mine and i know first time round the car was great full throttle maps but needed the part throttle ones sorted which was done when they had more time spent with it

collins know absolutly nothing about the ecu though,its actually made by another company,cant mind the name off hand

ive phoned them a few times and not helpful atal,i wanted to run coilpack and had to buy another eprom from them to upgrade in ecu at cost of £100