hah, and here we are a couple years later. not that long after building and posting this, I put a cheap orion red dot finder on the binos, and haven't used the GLP since.
I've been setting up the binos lower down, so you can view them from a drum stool (which travels with them). this means the laser is below the height of a tall person. this means its potentially unsafe, so its been retired. too bad, nicely made piece of kit, it worked really well.