...does the mounted tom have the tiny t-rod threads? Almost like #10 fine thread screws? I sold a set of those lugs and none of the rods I had would thread in them. I believe the second generation Star "teardrop" lugs with the flange had standard 12-24 rods.
Here's a pic of one of the 13" tom's tension rods next to a Rogers tension rod. My eyes are playing tricks on me so I can't tell if they are different types of threads.