If the points are 9" long, you may be well served to put in a secondary throw bar midway down the points to keep them from spreading. This was very common practice on stub switches (it was the only means of keeping them in gauge), but I’ve seen point switches with extra bars on the points as well. In theory, the point being subjected to the weight would be up against the stock rail, thus would have that to hold it in place, but stranger things have happened. As the saying goes, “can’t hurt.” Being a wye switch, there’s less contact with the stock rail, so there’s more “unsupported” length along the point. It doesn’t take much flex for the weight of a loco to push the rails over enough to drop off the rails.
There’s a company - GLX Scale Models - who is offering laser-cut replacement throw bars for Aristo switches. (They’re also compatible with LGB, Piko, etc.) $10 for a pack of 10. Replacement Aristo Throw Bars
Later,
K
