They may well claw back the money from sellers instantly - they aren't nearly as good at returning it to the aggrieved buyer. I loathe, hate and detest Paypal, but I am not about to give a CC number to some random Chinese website. The banks (in the UK) are just as bad, but are bound by national legislation that Paypal isn't. Credit cards offer far more (statutory) protection than the non-bank banks like paypal ever will. Paypal only exists because there is a profit to be made.
My new charger came in today, a day early! So I did my first 5A discharge test
5A 2665mah @ 2.8v
5A 2979mah @ 2.5v ! Thats the best 18650 I have ever seen!
Other random tests...
1A 2958 @ 2.5v 70F
1A 3023 @ 2.5v 80F
My understanding is because of the chemistry in these cells they can be run hotter and discharged more than standard lithium-ion's without suffering damage.
I don't want to push in on your thread or anything. But if there is anyone in the UK/EU who wants these cells, I also have my own ex-cell branded 3100mah (here's a link: http://imageshack.us/photo/my-images/69/excellwrapper.png/) based panasonic cells coming in under a week. I was not sure how much interest there was here as it is a 'budget' forum but I am offering them at a good price. £9.99 per cell and three for £27.99. Shipping is £2 in the UK/EU.
As I say, I'm not trying to directly take sales from you and actually believe you are probably the better option for US/North American based customers. But if international shipping is a problem for the US then I am located in the UK, customs duties pre-paid and my version of these cells may be the better option for those in the UK/EU.
The problem with cells that discharge down to 2.5v is that most of my lights will never get there because the drivers low voltage cut-off will kick in at ~ 2.8v. Its not necessarily a bad thing, I'd just consider it an extra buffer to overdischarging.