The tow/haulass mode also controls ETC pedal feel. There are separate tables that need to be modified to match the feel of regular ETC pedal response. You could also probably make it more responsive but it is risky modding those tables away from stock.

 

Mine has to seperate parameters. One that's conservative for daily driving n one for track also known as tow haul *** mode lol. Justin from Blackbear tuned my truck. So yes u can

 

2nd most important thing is to remove tow/haul trailer or text, this is only my 2nd try, next should all fit in one font - and no corner light

I just removed cluster, popped off clear screen, scratched the tow/haul mode away, used electrical tape, cut out "sport". Took a few tries, but overall I like it much much more this way.
Thinking next time to stick tape down and paint "sport" on and peel away tape.