Hi, I've done the whole nail as glitter and have had sooo many compliments I must have done something right!. Basically, if it's a new set I apply base layer and build apex, then BEFORE curing, sprinkle glitter all over the entire nail (Leaning over a dish to catch the excess), tap off excess and with a clean brush wipe around the outside of the nails to make sure no glitter has stuck there. Then I cure, BUT I add an extra minute as the cure has to go through the glitter. After curing, I brush off any excess with nail brush then apply another layer of clear gel and cure, then final gloss and voila!. Obviously this method has to be done fast as you are building at the same time but you could build first I suppose and then appy a very thin layer of gel and add the glitter at that point. The beauty of this is that with the gel on top of the glitter they look like they should be rough but they're gorgeous and smooth and sooo blingy. I have gained extra clients just from people looking at my nails in shops etc and they were soooo easy to do too.
Hope that helps,
have a fab Xmas xxxxxxx