My MPX had the 2 springs but the grip only had one hole, it was tricky trying to keep the 2nd spring straight while I put the replacement grip on but it basically just compresses down. Haven't had an issue so far.I have read that there are problems because the MPX has two springs as opposed to the standard one spring. Can I use a Magpul MIAD or is this a big deal to tuck the other spring into a place it isn't supposed to go?