I've looked at the B.B. HR's also but don't know how many cycles those have. I emailed the company. Waiting for a return. What I've found through the company's website graphs so far is this:
BP series: 180 full cycles at .25C
EB series: 300 full cycles at 5 amp(12v-12ah)
EVP series: 300 full cycles at 1C
EP series: 325 full cycles at .25C
HR series: ?
Personally, I have the BP series because thats what came in my kit plus I didn't know at the time. With 2600 miles on them in 2 years, I believe that the end is near as range is noticable down now. I like how the EVP series was tested at 1C. I'm leaning towards those right now but would like to know more about the HR series. I know they have more performance but no info on cycles. The EP series is slightly lower in performance then the BP series and tested at only .25C.