The decel starts from a short vane. It is a timed decel. The floor vane with door zone at that point has no effect on where car stops. It will relevel to the floor vane. When I adjusted those I figured 3" of slowdown for each 10ft of contract speed. T should drop out when G goes in with a very slight overlap. G is the slow speed motor relay. Check all your contacts on 1LR slimline relay and the GTR Relay. Also make sure 1G relay contacts are good to jump out the Slow Speed Motor Resistors. If it is only at the bottom make sure no one stepped on vanes or direction limit in pit, or something moved them. The slow speed Motor resistors are to smooth the transition from High speed to slow speed, Then 1G pulls in to give you full torque.