When using a mod, you can usually just
- unscrew the adjustable center pin out,
- then screw your topper in
- the screw the center pin in to make contact with the topper.
With the SMPL mod, people who don't undertand that the topper center pin needs to stick out otherwise they short out the battery are playing Russian roulette
and people that do understand, ought to figure out how to the common adjustable topcaps on most mods.
If you end up with a few mods, you can end up just leaving topcaps permanently onto your toppers, effectly creating a hybrid topper and never having to put wear and tear on the 510 threadwell.