Just my thoughts on this, fishing the GL's for me has been a constant change in tactics.
From fishing roe/bait to hardwrae now to the swung fly. Each step has helped me understand how they (fish) react to our odd environment.
Were it not for this progression I most likely would have stopped chasing them down. It's almost like a chess game, when you finally put it all together this feeling of accomplishment overtakes you. Almost like you have it mastered, right. Your next 10 outings are spent washing your offerings or leaving them on the river bed.
Great sport, couple that with sideways blowing snow and floating ice puts one in a state of nirvana(or confusion have not figured that out yet).