Trolleys used a spring-loaded single point in years past, and the wheels easily moved the single point when traversing a reverse loop, etc. I think you would have to have ALL car weight a tad heavy and have the spring loading of points light and probably do some filing/polishing on switch bad spots to fine tune same by trial and error. GOOD LUCK! P.S. If you use dcc, why don't you get a reverse loop controller from TTX[Tony's Train Exchange]and have a switch machine throw your points and your problems will be solved.