Thanks, I bought 1 LR, one 2.0 and one 2.5 Cisco Specs.. along with my HH357 custom Cisco order (which is a 1.5ohm). But my sweet spot is about 4.2 to 5 volts max. I rarely go up to 6... but who knows with the Woodvil VV. I'd had minimal experience with variable voltage devices but the one I do...