Hi!
I noticed the Mesa Mark IV model has a wired version of the actual PRSENCE PULL SHIFT function in the lead channel.
First thing: I think it's reversed compared to the original model. When PULLED, the sound should have more presence and highs, while in the Amplitube Mesa version it's the opposite.
Then, the change in sound is way too dramatic. When shifted, it makes the tone very muddy. In the amp the effect is way more subtle.
Hope you can fix this, because I really love your Mesa packs. They allow for full twekability and that's very nice.
Thanks!