Hmm..I always use the brachial on pt.s who aren't dehydrated or have flat veins. I go for the radial if I can't find an otherwise good vein. I always be sure my tourniquet is good and tight and I like to hold the vein flat when sticking. I always use a butterfly on elderly folks and peds and a vaccutainer on just about anyone else. I never, ever "dig" and I only stick twice. If no success, someone else gives it a shot. Hmm...rolling veins are always fun. I like to stabilize them with a finger on one side of it or downward pressure on the vein. Heating pads work well on flat veins...and that's about all of my advise. We do our own sticks, too, so we have lots of tricks up our sleeves! :-) Good Luck! EM