Physical differences between MMM V1, V2, V3?

[shaunjohnson]

i love the bullet idea....but i really hate bullets on the board!!
every single time i take out my main phase bullets i am petrified of having the VXL all over again LOL...bullets comming out :(
granted they are better than traxxas's futile attempt but when you are pulling on them you have to pull exactly vertical on them.

i'd rather have bullets on the wires cause then you can pull on wire vs wire rather than put any force on the main board.