I have a good chunk of store credit after receiving a defective overdose by mcv mod and I need to pick a replacement soon. I've narrowed it down to the silverback (18650), vanilla, and lunar mod. I'll use the remaining amount for an rda but I can't decide on one of these three. I feel like the silverback is way overpriced, the lunar is funky being at 23mm, and perhaps the vanilla will have excessive voltage drop as I want the SS version. Suggestions?