Thanx for being the designated answer man pot. I think Al said something about an injury. One other thing to consider if you are trying to set up this system is the strain you are growing. Al is growing sweet tooth(sorry forgot the number, I think its 3). It must mature with 8 weeks in flowering.
Both of you report using nutrient in your block as well, which I'm sure speeds the process, and just plain makes sense, they aren't seeds the are 'genetically' at least four week old plants.
I'm growing ww for the most part. Flowering time according to the seed company is 12 weeks to maturity. So I use the system modified to fit my strain. My clones spend four weeks in vegging under 18/6 light, then go to the flowering room. Three tables in the flowering room, call them 2-4 if you like, and spend 4 weeks on each table. At least that is the plan. So far its working.
Part of the reason for the slow progress, was not PICKING MOTHERS EARLY. Its only taken my a year to do that. I have five of them now and will take my first clones from them today. Do as Potroast has suggested, it will save you a year.