Maybe this post didn't show up because it was my first post or maybe I sounded too demanding. I'm just trying to help development. The Hakari F-1 engine has roll control from a single engine, which seems wrong. I'm probably interpreting the intent wrong but this section of code @PART[proceduralSRBRealFuels]:FOR[RealismOverhaul]{ %RSSROConfig = True @MODULE[ModuleGimbal] { %gimbalRange = 5.0 %useGimbalResponseSpeed = true %gimbalResponseSpeed = 16 } } from RO_ProceduralParts.cfg seems to be trying to set the gimbal range on the procedural SRB to 5 degrees. If so, it isn't working. Even if this isn't the intent, I think the default gimbal of 0.1 or 0.25 degrees depending on whether the SRB is set to vacuum or not could be too low. It seems like a kerbal based amount, rather than realistic, as I assume a real SRB would have either no gimbal at all or several degrees of it. Even if I'm wrong on all accounts I would love to know.