Khớp nối cho đường ray gỗ

I bought a box of wooden roads from the thrift shop and all the connectors were old, sticky, gooey, broken and/or brittle, so I pryed them loose and threw those away. The original male-male connector from timqui turned out to be too high unfortunatly, so I removed 2 mm from the model. Now it's flush without the need for scaling.

I'm not sure which brands the roads are, but the fit is different for the singular connection (a bit loose) and double connection (nice fit)