nice rack, closing the sides will make it darker and heat better. when spacing the shelves if you have something that is 1/16-1/8" thick you could use that to space each shelf while building and then remove when done. a piece of cardboard or plexi would work. basically put tubs down, lay spacer on top and put next shelf down directly on spacer and tubs, pull out spacer when done and tubs will slide right and no big gaps. i've found that belly heat is more effective than back heat. back heat works but i have to set the tstats alot higher.


vaughn