Did you run into any issues aligning the GAL operator with the existing clutch or door linkage? And what kind of load sensor tweaks did you end up making?Absolutely, I've swapped out an HPLIM for a GAL operator in the past. It ended up working pretty well, but it did require a custom bracket and some adjustments to the load sensors. It took longer than I anticipated, but it ended up being much smoother afterward.
I'd definitely recommend GAL for its reliability and good parts support. Wittur's a solid choice too, if you can find it.
What kind of doors and controller are you dealing with?