wow, u started this exactly 8 weeks and one day ago so I guess Ur probably harvested and ready to dry now.
I know U said u werent gonna change anything next time but I have a few suggestions..
70W HPS's are like $50 at home depot. all ud need is a fan to suck hot air outta ur grow room, a fan to suck cool air into the grow room, and a fan moving air around inside the grow room.
It'll at least double ur yeild for a small price.
If U risk the jiffy mix then go ahead and get the miracle gro potting mix next time (its only $7.50 @walmart).
just make sure the seedlings are at least 2 weeks old before u plant them in MG or else U might get a burn from the nutes in it.
in fact get the MG nutes too: the all purpose fert (24-8-16) (its only $3.50 @walmart) I used it the whole time, from veg to flower.
and make sure U read the directions for use. I have no burns, no bruises, and I flush 2 weeks before I harvest so I dont have any bad aftertastes.
lol, u silly