I Absolutely LOVE this stuff!! One thing: for hard woods like Koa, the times given for vacuum and soak are off. I've found, after extensive testing(and checking, double checking, and rechecking all my equipment), that a minimum of 24 hours at max achievable vacuum(29+ inhg at my location), followed by a minimum of 48 hours soak(no pressure), is necessary to achieve full 100% penetration in a 2x2x5 block of Koa. Also, a good moisture meter is VITAL to this process!! You should read 0% moisture in the block both before, and after, to achieve the best results. If your block reads moisture content after stabilizing, you didn't get 100%. Thank you guys for such an amazing product!!!!!