Mike, I use resolute and below is what I can share BASED ON MY EXPERIENCE:
It works like a wood hardener; so it will harden soft wood fibers but WILL NOT fill cracks or holes OR "GLUE" the piece together which is what I think people expect when they hear the word "stabalize". For example, if the blank has a crack the wood fibers at the edges of the crack will harden but resolute will not fill the crack and harden thick enough to seal and repair the crack...the crack will still be there...then again Minwax wood hardener won't repair the crack either.
I tested resolute and Minwax wood hardener on two very light Box Elder blanks. I weighed the blanks before and after treatment. After drying the resolute treated blank weighed about 1/4 - 1/2 oz more than the Minwax Hardener treated one so I can surmise that the resolute left more of the solution in the wood fibers once dry. I have used resolute with vacuum, pressure and just dipping and really can't tell the difference. It penetrated deep into the wood even without drilling the blanks. So far I have not used it on real dense woods but the softer the wood the faster it penetrates, (I know duh). It does take a while for the solution to dry, I have had blanks airing out for a week or more. I recommend using it outdoors and leave the blanks protected from the elements but outside for several days. I brought mine into the shop the following morning after treating them and when I went returned from work that evening the whole shop smelled like resolute, it is a pretty strong smell when in an enclosed area. Blanks treated turned fine, you can still smell the soulution while turning, on some treated pieces that were initially very, very soft I still used some thin CA before the final sanding to really harden the fibers.
My conclusions: it WILL harden the wood fibers and will make the treated wood much harder. It penetrates quickly and deep (at least for pen blanks). Using pressure will make the blanks sink in the solution much faster but if used without pressure they will sink (eventually, 3-5 days). It dries inside the wood and does not gunk up or harden as a film on the wood, but it takes several days (5-12 days) to completely dry. Unlike proffesionally stabalized wood you will have to apply a finish once done turning.
The results are no where near professional stabilization where the end result is a hard piece of plasticized wood, with resolute you end up hith a harder piece of wood.
Oh yea; I bought 5 Gallons of hte stuff...I will eventually use it though. Hope this helps.