Does anyone that's removed the internal frame on the Guide's Pack have any tips or tricks on how to put it back in? I managed to do it, twice now, but it is really difficult to do so. I feel like I'm going to lose a finger when trying to slip the last couple of fins into the slots. I think the real challenge is the fact that the bag is so deep and cavernous that it's hard to see what's actually going on inside the bag while trying to slip it back in place. I'd hoped I could invert the bag, but it seems like it wouldn't be possible to undo the inversion process once the frame is in place.

Any help would be appreciated. Thanks!