If its slipping he is not being agressive enough. I think he might have just slipped up a little on the pressure chart. I would get the lower octane tune does he offer a 91 octane tune? Its hard to find 93 octane sometimes. You could try some octane booster but you need to get you trans to quite slipping before you burn it up. I would get the lower octane tune and have him return trans pressures to stock or slightly higher. If it doesn't slip with the stock ecm he should be able to fix his tune.

 

Your probably the sixth person or so I've seen that has the W4Me tune and its causing the tranny to slip. Toss the factory PCM back in and its fine.
I don't what he does that makes them slip but that's an easy way to kill a trans real quick.

 

the truck is running fine right now with the stock pcm. Im going to give hime a call later and see what he could do. Ill try the 91 tune and let see if he could make my tranny stop slipping. Should I take some TQ managment out while im going to send it back.