having the pickup too far away will cause lower power from the pickup coil which might be too low at low rpms.
i fried a 2041 box a few years and opened it up- the capacitors in it are ultra weak (and also some crazy sub-china 3rd world garbage quality- the electrical engineer that was looking at me was like 'how are these even a thing')
my theory is that they are ultra low voltage because the way the 3055 is designed, it doesn't put out much power, when you hook them up to a regular ass CDI stator it way over-powers them, and when you hook it up to the wackadoo stock trigger coil that comes with the puch CDI stator it way-way overpowers them.
i would try putting the 10 dollar Jog box with curve on there, or a 3202, and see what it does. I just ordered some of those 3202 jbot specials from china and i'm thinking i might pair one with a 3055 piecard coil and see what it does?
Sorry none of that post helps you any. Sure try changing the coil air gap. Don't plan on like riding your moped across the country to realize your dreams of becoming an international rap sensation though.