thanks for adding so much "knowledge" to this thread... as far as indicator/bobbers are concerned, the only thing I don't like about the Thingamabobbers is the way they kink the leader. I just started tying my own nymphing leaders to get around this. A short butt section of 20lb Chameleon (couple of feet), another couple to three feet of 12 or 10lb Chameleon, a 3-4' section of tippet to first fly, about a foot or two to the dropper. Usually one small split shot is plenty to get it down. I attach the bobber to the second stretch of Chameleon (10-12lb). Once it gets too kinked for my liking, I swap it out (I'll carry a small spool of both 20lb and either 12 or 10lb). I like the Chameleon because it seems like it's stiffer than UG and takes a bit more time to really develop major kinks in it. I also never have enough weight to really need anything larger than the 1/2" indi. This setup will rollcast like a dream with nearly any rod I use it is also plenty easy to overhead cast because there is so little weight (just make sure that you open up those loops). One final thing is that when I tie nymphs, I'm usually tying them really sparse and thin so that they don't require much weight to drop through the water column (plus, if you compare most nymphs to the naturals, the naturals are often much skinnier than the typical nymph).