Recently, my back yard series has added a provision for use of LiPo HV. My track runs four 17.5 ST's and two 21.5 ST's. Rules provision allows for HV use in the 21.5's, but not in the 17.5's. Thinking that might add a bit of performance to the 21.5's and even the series more. Still waiting on extended term overall results to shake out to see if there is any advantage to the 7.6HV over the conventional 7.4.

Did notice the 7.6V HV I am buying come in lighter and slightly dimensionally smaller than the 7.4V counterpart. Whether this plays into overall performance is yet to be determined. It is, at least a planning factor to consider for the serious racer competing in a series open to HV.

Regarding caring for the HV: My charger has an HV provision for charge and storage separate from conventional 7.4V LiPo. Beyond that, treat and store them the same as LiPo 7.4's. Spec pack for my series is 2s x 4600.

Cheers. 'AC'