The safest way to eliminate the minimal voltage drop from the spring would be to solder the spring were it is riveted together .You would gain back that almost unnoticeable drop and retain the safety of the spring . I will never make a mod without a spring its not worth the risk .I like it. I'd prefer the larger bottles if possible, forget the 26650. Hopefully it will have a lower voltage drop, any way of not using the spring and Have a fixed negative contact instead? I would want one tumbled raw and one in metallic royal blue and two minis in black wrinkle. Congrats on the new design and staying progressive
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What I can do is make some of these springs up for people that want them . The only problem I can think of is what to call them