picked up a 2012 M1200T, has Speedwerx 210/240 tuning and bikeman charge tubes already. i did the EVOP intake last time but want to do headlight delete and/or maybe lightweight hood next year. anyone used the mountain fit under gauge intake? pros and cons of doing a boondocker filter through hood... and best primary spring for boon docking currently have yellow with white strip but engages way to high rpm, secondary helix?