Yes 4 plants under a 600w Philips Son-T Plus hps . More than 4 weeks from small cutting but they didn't veg under a 600w mh the whole time, these had an interrupted veg because I don't have separate veg and bloom areas currently so they would spend 12 hours under hps with the flowering girls and then the rest of the day under small cfls, so not ideal at all. But they got there in the end. The mainlining by "Nugbuckets" is described here
http://www.growweedeasy.com/mainlining-nugbuckets 
and the supports aren't necessary especially on the 32 site mainline where the weight is more well distributed . mine are heavy now though so I have done some supporting with garden wire. Also thanks for your (and everyone elses) comments I appreciate them