Hey I will be joining the matrix family really soon (my dm4 is on the way as I type). Now time for a few questions. Is the dm7 board in an ultralight frame in anyway better than the stock frame with the thump board and m7? Are there any feednecks that are as short as the one on the mini that will fit the dm4? What are the feedneck threads? What parts can be switched between the dm4, dm5 and dmc? and any suggested upgrades and where to find them would be great. Thanks for all the help.