I have successfully righted my old TheMightyHobie18 3 times. 1 time with a 160 lbs kid (I am 190). I am positive the large Murray’s bag will work.

I just purchased a Murray's bag (used). I have seen them successfully lift a 5.7 G-cat several times. Yes they work... but be sure to tie a stopper knot in the end of your line or your bag may float to the bottom.

The Murray’s bag I have has a strap on the bottom. I plan to add a little line to pull it up bottom side up so it spills out as you lift.

I attached an S-hook on the block and plan to tie a truckers knot in my righting line so the block will simply hook on at that point.

My biggest issue is where to store it (since I don’t want to remove my tramp to get a pocket sown in the bottom) on my new Mystere 5.5 . I think I have figured out a way how to hang a little bag under my tramp. I will update you with a picture when complete in a few days.