In Race mode, having your vector locked when slowing down from boosted speeds or when switching from NAV mode back to SCM mode for recharging boost is a pretty much a death sentence. While slowing back down to normal SCM speed one needs to still be able to change their velocity vector. Otherwise MM races are likely just going to be NAV mode all the time, despite the slow boost recharge.
that’s already on the todo list. Fun fact, it has nothing to do with MM, it is just how we treat accelerations when IFCS tries to go back into the allowed speed limits. MM just made that particular behaviour very visible. Something for early next year.