Sorry, i don't understand this. I repeat Manley's VTOL in previous versions and it normally flight. In version 1.0 this craft can't be horizontal flight. CoM not coaxially CoF unlike previous versions. p.s. Sorry for my English.
But not outside of engine. At first let's do full model of engine with real place of mass. Is not reason to breaking physics, i think. The new engines not allow to create light VTOL like VTOL Scott Manley