Ha! U have no idea . My recoil broke on my 670ho and all I had was a small one to use . Would of needed two people to start it lol .No kidding about that recoil. My 583's compression tests at around 145 psi and I darn near pull the machine backwards when I have to pull it over.
Usually have to give it a little throttle to get it going after sitting for a bit so you have to pull it with one arm. I can do it but it's pretty rough.