Autoshift for liquid bulk?

ya, 2013 Mack Pinnacle w/ m12 auto shift, Have no real complaints. Just starting out loaded on a hill is a little bit of an adjustment to get used to, It seems like the brakes release is a little delayed

 

Have the same truck....hauling fuel.....you can get rid of that brake off delay by pushing a button on the dash.

 

which button the performance or just put it in manual shift
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Isnt the surge worse un the automatic

 

There is a specific button on the dash.....cant remember what is written on it but it disables that brake release drag if on a grade.

 

Ok thanks, is this button with the other trans buttons of elsewhere

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Not a tanker, but I can only assume that the surge on a smooth bore during the gigantic jolt forward on a downshift would be enough to possibly ruin a day. Got a big Mack in the fleet running an Alison auto when it shifts- feels like the ground rising up and shaking.
Imagine trying to shift from 3 to 4'th on a steep ramp in the NE with an auto could easily be enough to cause serious problems.

 

Thats what I was thinking.....how would a automatic handle the mountains grades....I rather be in crontol