Canard CG Calculator I'm using is rather spot on, at least for the glide testing. I added a few more grams of weight up front though and the glide improved a fair bit.
Right now, with the weight it's up to about 380g, frankly quite surprised it's able to glide as far as it did (15 meters? 20? ).
Actually, when I first did the test, I was just throwing it, and it just kind of tilted to one side and nosed into the ground. Only when I ran a few steps before throwing, did it do a nice glide.
Next I'm going to have to see what the current CG is, the begin installing the electronics. From what I gather, the battery will definitely be moving up close to the nose. Hopefully I can get the cg right purely from moving the battery.