I've never seen any repeatable difference in discharge capacity between cells slow charged at C/10 and those peak charged at higher rates. Where does your 95% comes from and what is it 95% of ?

Measuring the amount of charge that goes in is pointless. If you leave a battery on C/10 charge for long enough you can appear to put in 500%, 1000% or any other number you like. You won't get any more back OUT though.

Steve