I just ran right over the T-Tracks, it wasn’t a problem. The T-Tracks are a bit lower so not as focused and the laser doesn’t have that much power. I have a SainSmart laser not the Sienci one but I’m guessing the Sienci one won’t hurt the aluminum.
I made a mount with my 3d printer so I could put the laser in the router mount so that for that burn my laser could reach everywhere that my router can.
There are some pics of my Frankenstein router setup that day over here! Since then I have cut the cord on my router and put in connectors so I can take my router on and off easily. Repurposed an old cord so I can now use the router off the machine if I need to.