Looking to get a newer mech than the ones I have lying around, good mods but all pre-2011. None of the 18650 mods I have will fit an RDA without expensive updating work which I may or may not do eventually, before things go belly up. Anyway, I have some parameters that I know make this a little hard, or else I'd have already found something myself... but I feel confident that you fine folks can help me narrow things down. 1. I don't have a lot of extra cash right now, so I'm looking for something *relatively* inexpensive, say $60 max with a tad bit of flexibility. Less is better, as long as I'm not sacrificing safety. 2. Dual 18650, at least. Would consider dual 26650 or tri/quad 18650. 3. Clones are OK, but only if it's a device that has been fairly popular and shown to be safe when used correctly, barring any unusual issues. 4. Fully mechanical 5. I think I'd prefer adjustable 510 over spring loaded, but it's not a dealbreaker. 6. Locking switch would be great, but also not a dealbreaker. I had basically settled on the Bigfoot by Cigreen and found it for a very reasonable price on Vaporbeast. However, I read that there were two "versions" of the Bigfoot, one with a spring-loaded 510 and the other with an adjustable. I heard some people saying that the spring was so flimsy in the former version that low-ohm builds were softening/melting the spring, so I don't think I'm going to go that route unless Vaporbeast tells me that they actually have the ones with an adjustable connection. Thanks in advance.