Training to failure doesn't actually require a rack, or even weights, aside from body weight. Few people can manage more than 5 or 6 reps of something like pushups, when you slow the pace to 60-seconds per rep. The continuous tension will stress the muscle groups to a remarkable degree. Sorry to the OP for highjacking.
I'm more of a pair of squat stands only guy. ?I sold my rack about 10 years ago and now I just have a bar and weights. ?If I can't clean it I don't squat it. ?Obviously you can?press off the stands. If you train toward failure (which requires a rack)?I'd recommend the book, 'Power to the People' instead. ?Let volume do the work and put to failure training to rest. ?Power to the People by Pavel Tsatsouline provides the DNA to concentrated loading, advanced level of training. ?Put the?training wheels away. When you get old you'll?thank your joints. ?But since you won't heed this advice I wish you luck. ? ?
I have sprayed quite a bit of WB poly and shellac with the 1.3 and 1.5 tips. I don't have professional level experience but, I think it does a very nice job. I have another gun of the same model with a 2.0mm tip that I use for latex. All it takes is some moderate thinning and a little Floetrol to get a nice finish. I'm using a California Air 10 gal compressor w/6.4cfm capacity and i usually have the pressure at the gun set to about 20 psi; higher for latex.