For that matter, so are non DIY alignments. If you're selling drugs in NJ anytime soon swing buy and I'll put some coilovers on for you, should only take about 2 hours.
You shuold make RH77 sign a release form before you install them, especially if he has a bad back.
Bounce, bounce, bounce.... down the street. I am used to it and it's not bad for me because I stay off the interstates and the roads are fairly smooth. But the times that I have to drive on I-79 the incessant bouncing turns my brains to mush.
Honestly, I do have a bad back (another good call), ironically (degenerative disc disease). For the most part it's OK, but yeah, the jolts probably would be a bad idea. L4-L5 and L5-S1 are both shot, so I don't personally have shock absorbers in my lower back, and if the squished disc pushes against the spinal cord due to inflammation, my leg goes numb and hurts. Wish I would've known that when I was lifting 300-lb patients as a Medic/Firefighter 5 years ago (found out around 2 years back).