I'd say so, and don't limit your info from one source. My experience with cactus juice is secondary, but might be useful. I used to have property where I harvested my own maple for heating and would keep the good stuff, ending up with thousands of blocks of maple, some spalting, some burl, some curly. About 3-4 years ago, I sent a few different folks who did their own cactus juice stabilizing a dozen or so blocks each, letting them keep half or so. One person returned blocks that were comparable to K&G in weight gain, feel, density, workability, etc, two other folks returned blocks that were close, but obviously didn't take up as much resin, being lighter and the spalted pieces were fragile.Just need more info....
One thing that my admittedly small sample size suggested to me was that cactus juice might do better with the 'punky'/spongy spalted pieces, because the high pressures that K&G uses tends to warp these pieces significantly (depending on the amount of punky wood in the block) so there's more waste to get a square block.
I use K&G and a medium flat rate box is 30+ blocks and total cost including shipping both ways ends up at ~$4-5/block. So I think it's possible to get really close to what the professional companies do, but there's too many variables for it to be worth it to me.