Does anybody know how durable the new dc30 collars are. I know some peoble claimed that the others would tear the nylon.

The dayglo replacement collars are the way to go. They are the same as telemetry companies use for their collars. They are more durable than the nylon collars that your dc 30 comes with and do not soak up dog odors etc. I have dc 30 dayglo collars for $20 each.
Howard Owen
S and R Sporting Goods
573-669-5101

thanks first i heard of those