I finally decided to scrap my homemade plastic bins for new roughneck style bins, still have my 360 system which has worked great. The plastic was never a good method although it worked decently enough to provide some good vc. So Im now in the process of the change over already having been using one bin of the new style for about 3 mo. Im going with the same bottom technique of using 1/4" hardware cloth and the old hardware cloth fits perfectly in the new bins, I just need to cut out the bottoms. Couldnt believe how many worms were in the new bin after only using 3 mo and only starting with about 50 worms. Seemed like close to 1000 worms but most likely not that many.