brian- IMNSHO, the answer would be a definite NO. Coon are unbelievably powerful and when you are talking honest 20+ lb coon, you need a drag they can't pick up and walk away with or even worse climb a tree with. The key to coon is big and bulky or big and heavy. I prefer to use long, many branched tree limbs which are relatively easy to find in my woods. If not, use an old log- better too heavy than not heavy enough.
If looking for manmade drags- a old time full concrete block is good- but on smooth or frozen ground a coon can take one a long wats. Old tires where found make excellent coon drags. Old brake rotors- a couple wired together make very good drags.