take care with VRs - they can cause probs Ive heard.

Personally I prefer simplicity..

I am going for a mix of the 8511 and Fut 9206, all 4.8
With a good battery back used regularly I dont see a liklihood of cell failure, unless it is mis charged.

The moment it begins to fail on nominal capaicty during its quartery capacity test it gets demoted and watched or thrown in the bin!