If you cut the tray out in a large piece like many people do for a re-foam it makes it much easier. It’s your sacrificial lamb. Green glue is best dealt with ( best, considering time/effort/risk of damage ratios) with heat, a high quality 2inch putty knife that has the blade through the handle and makes an anvil at the end of the handle. Get a 2inch wood chisel as well with the same anvil style, use it as a second stage “wedge”.
Once you have the tray piece out,( there is a lot of glue where the pump tunnel touches the tray); then de-foam at least to expose the glue joints. Start by splitting from the middle of the ski in the engine compartment. It has the most give. Use the putty knife first then as you make progress use the thicker chisel to act as a wedge. Always back up your blows with a buck of some sort, like a heavy body shop dolly. You would put this on the top of the bond rail as you strike up on the putty knife from below, and then when you drive from the inside of the hull out, put the buck on the out side of the bond rail. You certainly can cut as much of the glue out of the bond rail joints from the inside of the hull and from the bottom up, but even with a multi tool it takes a looong time. A multi tool helps with dog ears of the top of the bulk head but a lot of times you can use the putty knife just fine. If you can find and old square hull to practice on that helps and you’ll have an extra for a top deck conversion if you want. That’s where I learned all this nonsense. I wasted a lot of time cutting glue when I later learned how to get it to pop. Much faster and cleaner, nuff said. Remember, if you fail you can always buy an aftermarket hull and be glad you didn’t waste a lot of time re-inventing the wheel:biggrin: