dive shmive, the airspeed dosen't care, and we already know that there is no way to ;imit speed in a dive.
crosswind will never add more or subtract less than headwind/tailwind, so give en the benifit of the doubt.
thermal activity, are you serious??????
what do we do with someone that actually has an overweight model now? at least with an overspeed one, we can ask him to dial down his throtle atv a bit.