CAPPilot posted:For some reason my RR-Track software will not connect any track to the fast track O-72 wye piece, so this is a best guess. Fast Track does not have many 11.25 degree curve sections (only O-36, O-72, and O-84) . Of those, the O-84 fits best to get the 5 inch center-to-center track spacing of the MTH shed. Combo is the wye, then a 1.375" straight, then the O-84 curve. Maybe someone can try this on a different program to confirm.
CAPPilot,
The wye needs the 12xx 1 3/8" fitters. They are half-roadbed pieces. RRT won't let it connect as a default protection.