Most likely the two sides with bevel is caused by the torch being not perfectly square to the plate. This is very difficult to do with the hand torch!
With the machine torch, you can accurately square to the plate, and, you do not need to do any wire splicing to get the plasma start signal to work, simply connect to pins 3 and 4 on the rear panel connector.
In a couple of weeks I will post the plug and play connectivity of the Powermax65 and 85. Using the machine torch I will mount the torch, and plug a single connector into the rear panel receptacle, no wire splicing, no internal connections....to interface to my cnc machine with torch height control.
The machine torch is a bit more expensive, but over time (to me) it is well worth it.....more accurate cuts, easier consumable changeout, and a safe, simple interface.