That's scary. Do not let anyone tune your car without you watching there every move. If you do not understand what they are doing, then do not do the fuel upgrades. Just a rule of thumb. No tune is EVER final so you can't just really set it and forget it. Shit happens, things changes. Tweaks are always needed.
Glad Justin was able to resolve it. Massa is very capable and probably assumed everything was fine.
Massa: You should pick up some sort of datalogger or something to make sure everything is fine every now and then. Glad you are a puss with the car to avoid any problems.
