Never had any experience with either one but I'd buy the Pro50 personally. Of course, part of that is they are about 1/2 hour drive from me so I wouldn't have to wait for shipping
Also, I've heard that the handle on the Pro50 is very straight and that it sometimes interferes with radio operation (inserting/removing CDs, etc.) That could be easily fixed...I think fordmuscle.com or maybe someone on this board drilled four holes in a steel plate and used that to offset mount the handle.
Good luck,
Rich D.