Yes Matt, i always glue the sides on without the pins in.
I glue one side, let it set, then drill through the pin holes,- then glue on the next side and let that set, and then drill through.
When i'm clamping on the other side, i keep an eye on the clamps for a few minutes to watch for any slipping, and just re-clamp if that happens. Its usually ok though when the clamps are in place, but this glue takes 24 hours to set fully, and is still "liquid" for about an hour so i keep an eye on it as i say.
I find it easier this method.
Yes this is the best bit now,- its starting to look like a kni