Thanks, Anthony. That means it should stack well with any of the "class I" steroids: methenolone, oxandrolone, nandrolone, trenbolone, etc.
I know there's a consensus opinion against oral-only cycles, but I'm considering an OT/primo cycle using paper products. Nothing against needles, but paper orals seem to be the safest way to go for ordering product by mail, and this combo seems like a reasonably conservative first cycle for a 45-yr old lifter.
By the way, regarding the original topic of this thread: the half-life of 6.9 to 7.2 hrs that I mentioned earlier was from the 1996 World Anabolic Review.