During our recent visit to George Reynolds shop to view the progress on Morph III, Rory McCarthy and I discussed the current approach to seat tilt correction. When the bike morphs up, the seat tilts forward. This is more pronounced on Morph III because it morphs through a larger range, and because we expect to start with the seat in the fully tilted-forward position. On Morph II, we have the seat fixed in one position because the tilt mechanism was very difficult to change. This leaves the seat tilted back even when you morph down, which hurts ergonomics significantly.
This presentation looks at how an independently-tilting seat might work. The current design integrates the seat and rear morphing frame. To adjust seat tilt, you essentially pull the wheels further under you, and that tilts the whole rear frame, including the seat.