Ditto what Kurt said, slowing down isn't a bad idea if it means you'll be happier with the result. Just don't get analysis paralysis...not that you're in any danger of this at the rate you've been going! Slow down is fine...just try not to stop! Inertia is hard to overcome in either function, starting or stopping. As for that space in between the peninsulas...you've already got some good ideas. With all those turnouts, however, it wouldn't be a bad place for a small interlocking tower. Just getting a road to it might be difficult, unless it came from across the tracks...gravel road with a timber and gravel crossing.