Though 11 years have passed, this is still my kind of layout ; pure point to point. If you're into Ops. this gives the crew allot of proto chores, like the 1:1 scale..And with no loops it's near an all shelf design..One thing though: Why have a turntable replacing the middle leg of the wye ? If, hypothetically, this leg were say, 8 times longer, then yes, have a TT like allot of early switchback lines had..But the wye itself serves the same purpose here. I.E. here, the TT is redundant..