nice, i think that THC content is a common misconception for some people when picking out strains. As good as white widow was the THC content wasnt nearly as high as some of the strains you see today but the high is still just as good if not better then alot of strains ranged at 18 and 20% but...
yeah they grow back and will be ready to cut again in anonther month or so, the plant will have to be watered less and more often, i usually water mine until i see water start to drain out of the bottom, since they are smaller pots theyll dry up quicker so just keep a watchful eye on them.
i havent seen them but id say yes, and he is right the single cola lollipop will probably get the best results, you can use small bottles or drinking cups for the pot and youll probably have 6- 9 in the space that the one normal plant would be taking up.
LST is usually early in flowering and as for which has the best results it really depends, it you were just growing one plant id say veg it for like 6 or 7 weeks and top it during veg and then LST it as well
no more so than just doing all one way....somebody mentioned LST already, its low stress training....basically your tie the plants down and thus the lower braches get more light and bigger buds, its just to get more out of your light and plants.