I would suggest:
Quick release helmet strap for the Calvary
Optional visor size
better way of keeping ear covers in, they do lock into place they do not stay in place.
I would suggest:
Quick release helmet strap for the Calvary
Optional visor size
better way of keeping ear covers in, they do lock into place they do not stay in place.
An additional benefit would be that you would be a lot more likely to upgrade units. I have several helmets, and I resisted upgrading because I would have to rework all my helmets. resume examples I did upgrade from the SF2 to an SF4, and really appreciated that it was just swapping out the unit, no redoing the wiring and mounts, and I didn't have to buy new mount kits.