Hi. I've built several airplanes in my short experience of this great hobby. But I am wondering how you guys glue your horizontal stabilizers onto your fuselage without it slipping. A friend glued his and it was off 1/4" from the distance from the building table to the tail. How do you guys secure the stabilizer so it won't slip?? Thanks.
Clint

It depends on the model and materials. Sometimes I use straight pins through the horizontal stab to hold until the epoxy dries. Or I sometimes use quickgrip clamps to hold it in place.

I generally pin it down and then use blue painter's masking tape to make sure it stays exactly level. I use line levels on each side of the stab and one on the fuse.