Look Ma I found some great weight options from the local grocery store (in Hawaii). Since I am using the thermoplatic cords need additional counterweight.
These come in various weights from 3 grams (1/8 oz), 6 grams (1/4 oz), 12 grams (1/2 oz), 18 grams (3/4 oz) and 24 grams (1.0 oz). The prices were reasonable at about $2.50 for up to 11 of the 6 gram weights. I’m sliding the cords thru these and letting them rest on top of the EZ Bobbins so it is easy to lengthen the cords and put through the shed. I have had no issues in snagging the cord while putting through the hole and since these are used by local fisherman/woman the edge is not sharp so it does not cut the line while fishing. Give it a try.