which collar is better dc30 or dc40

I would have to say the 30 hands down as well. back when I first bought an astro 220 and dc30's it seemed like they never broke or messed up and to be 100% honest I hunted way more often back then (4 to sometimes 6 days a week if I could afford it lol) and the dogs we hunted back then were longer range on average than what we hunt with now. The 40's i've owned haven't held a candle to the 30's, the ONLY thing I think is better about the 40 than the 30 is the charger. Maybe i've had bad luck but I have had at least a 1/2 dozen 40's break on me and currently have 3 broke at the house right now that i've been procrastinating about sending in lol.