Standard 510 and eGo Rack Hole Sizes?

[Emilie]

What are good sizes for batteries and mods for 510 and eGo PV racks?

I'd like to make something I can expand into, and, while I'm EXTREMELY happy with my iTaste SVD, I'm sure I'll want other mods and batteries down the line.

I'm also curious what the drip tip holes and standard bottle sizes should be, if y'all'd be so kind.

Thanks!

 

[Emilie]

I think I've figured out the sizes I need.

All I need to do now is measure some bottles.