HiI have recently started re-flying the 737NGI noticed that the AC "oscillates, bumps, bounces" in flight, of course slightly. It is more noticable at x2 x4 acceleration.Can someone tell me where it could come from?Thank youGhiom V

That's probably just the AFDS making slight adjustments to the flight path. The real aircraft actually works this way too, it's always making tiny corrections to stay on the LNAV and VNAV paths.This effect is of course going to be magnified at higher time compression...