How about getting the people who design the routing of the yellow line/green lights to come aboard and see how difficult it is sometimes at MAN to actually follow the line while leaving some rubber on the tyres !
Over the last few years, some routes have changed, particularly outbound towards 24R, the turns after the East Link are not easy to accomplish or comfortable for the pax.
I guess this is sort of on thread, I agree with the original post that some folks go really off piste but thought I would have a moan at the airport authority anyway
Re Fam Flights for ATC, we do them at MAN, get in touch with the Tourists Base Manager and he will organise.