Pali V4 has springs for postive and negative posts.

[Syzygy]

The pali came with a coil installed, so I'm able to use it. But I'm not sure how to handle the springs when it comes time to change the coil. I can't find any similar wick styles, but I may not be looking in the right place.

I got the Pali from Stormy's vape Cellar, happy with it. Just worried about losing the springs or setting the thing up wrong and frying my mod.

 

[tmcase]

I don't know anything about this rba except what I read on the website but it looks like you get an extra spring in case you lose one and it shouldn't matter if you put the spring in upside down or not. Should work either way. It doesn't look like they sell extra springs so I'd be very careful not to lose one.