Some feedback:
-At least in the 25-26k range, the jet can break mach 1 without burner. The existing performance envelopes from the NATOPS show that a DI 14.0 bird should come in at just under mach 1. I assume that for our purposes, the FM is supposed to be a clean bird (DI 6.0), so it should only barely be able to eek out mach 1 in level flight or in a shallow dive, not exceed it. It's not over by much, but it's an important performance benchmark.
-Trim resets with even slight elevator stick movement. This means that in certain conditions, making minor changes in pitch or altitude can be a hassle. A slight nudge of the stick generates the pitch rate for a minor change in altitude, however the trim is then reset to 0.0, leading to a very slight pushover. The trim then kicks back in, usually stabilizing the aircraft at 1 G in a gentle dive. I feel like the best option here is to have the trim not reset when the stick is moved. This would mean that for the starting condition, centered stick would be 1 G flight, and any displacement from center would result in a Nz different from 1.0. If my interpretation of the NATOPs is accurate, this should be the case as long as AoA is below 22°.