So I flashed the tune and wasn't happy. When pushing the throttle a normal amount everything is great until about 15-20% down the travel of the pedal when suddenly it seems to request 50% throttle. I went back to the tuning company telling them it didn't seem right and they gave me 5 versions to try but it didn't make any difference. They claim not to make any changes to anything but the "torque limit" in the ECM. Supposedly that's all jlr does to increase power across the variety of models with this engine. I've been so busy I haven't tried the last file they sent me but I'm not expecting it to be fixed. I think something in their tune is adjusting the requested vs. actual throttle mapping. Not sure, but I'm hoping eventually they'll figure it out. I don't want to flash my truck 50 times to figure it out so if this last file doesn't work I'm going to request they do testing on their own end. It definitely pulls harder at high RPM but the gains at low revs seems minimal. Coming from the VW world there are so many excellent tuners that seriously develop their tunes to adjust everything from throttle mapping to AFR, timing, etc. It seems like with this JLR tuner, they're just making minor changes to one thing. Oh well, maybe over time things will improve.