I've played my warlock enough on sunsinger and got a friend who mailed warlock and we both agree that fusions are by far the easiest of the stickies to use. They have to most damage output, and have some pretty absurd magnetism (we've stuck people around corners and had grenades straight up change direction). While they can bounce off they rarely do, we tested and Flux grenades fell off the most, followed by fusion then magnetic that only f3ll off I think twice. We did notice that magnetic didn't always net the kill with a stick, sometimes wouldn't even detonate. Fusions are by far the most powerful and easiest of the stickies. As for lightning grenades just want them to have an accurate area cone. Sick of that grenade pointing straight up from 5 ft away killing me because -blam!- physics. Only change I'd make to fusions is tune down the magnetism. Also spike nades need a range check, so many times I'm out of the void light reach but have taken damage.