Thanks Zac,

Actually, due to the way the Fenix BC30 cradle holds them, I'm looking for flat tops right now. 1 of the cells sits easy to remove, the other, the button top actually sits in a notch & makes it a PITA to get out. (especially with longer protected cells which are now really compressing the springs on the opposite side).

Soooo, I'm actually looking at as short a protected cell as possible, with a flat top while still being a quality cell. (I'm not opposed to shopping a 3100 vs 3400, for example. Anything over the ultrafires I have now will be golden)

Thanks again for any/all feedback!