Morning cranks have been a little sluggish since the cooler weather has set in. Figured this was a sign the stockers were about to call it quits. Sure enough, had them tested and both were maintaining less than 12v. Out of convenience, I went with the Interstates. Can't really complain though, as the stockers lasted 6 years. Wonder if i'll get the same longevity out of these? We'll see.