I have a PM myself, and I certainly recommend giving it a go, even though the jury is still out (for me) as to whether or not it actually works.
Like most things, at first, I’d recommend taking it slow. Don’t feel pressured to stretch past EL for the first couple of weeks, and just wear it for as long as it is comfortable. If it starts to hurt, or your glans gets cold and numb, take off the thing!
I’ve been wearing mine, basically everyday, for about a month, and I can now wear it for 7 - 8 hours per day, although I have to re-wrap every 0.5 - 2 hours (depending on slippage, coldness, numbness, etc.). Just listen to your penis and don’t be overzealous. I know lots of websites recommend wearing it for 12 hours per day, but honestly, that is impossible for most people who work and live regular lives. Just do what you can and be patient. Growth with the PM is very slow from what others have told me.
There are tons of threads on the PM. Do a search and check out the routines and advice given by others.
As for manual exercises, I still do stretching and jelqing on PM stretch days. I usually stretch in the morning before putting on the PM, and I stretch again at the end of the day. I jelq on a 2 on/1 off routine (meaning there are some days when I wear the PM but don’t jelq). If my penis is particularly “tired” on a given day, I rest. Usually, I will take a break from all forms of PE about every 3 or 4 days. (My erratic schedule keeps me from being more regular with rest days.)
I’d recommend giving the manual routines another shot, by the way.
Jet