I quick answer is no since the PT is horizontal mount laydown type and the OT is Verticle mount standup the magnetic field of the coil is less; however, you should space the OT over some to make darn sure.
Some people go through the trouble of the headphone trick then mark the best orientation. I just make ample spacing. Most punched chassis already have your mounting holes. If you look on Weber website they have chassis drawing showing the spacing of the holes.