Right on man, another great harvest in the bag, or jar as the case may be, haha!
What I'm doing this round, because I have to sex some stuff out, is I got the 3" tall x 4" blocks to veg in, then once sex is established I'll move them to 3" tall x 8" slabs. I just buy the 3"x8"x 3' slabs (the 3"x6"x3' work just as well too, I used those last round but wanted to go a hair bigger this time because the price was only a couple bucks) and chop them into squares with a big ass serrated kitchen knife. I cut right through the plastic and everything like butter. Then I cut a 4" 'X' on the top of the block plastic and then peel back the triangles and put the veg block in the hole. Then I arrange the slabs with blocks on them so that the open ends of the plastic on the slabs is facing towards the drains so no water gets trapped in them. Works super good and I can still keep my floods down to manageable levels because my height is still at 6". If I don't have to sex stuff then I use the 6" blocks love them! =)