Wow, I just learned something new...I had no idea there was any such thing as titanium needles! Are they less prone to bending?
I have used Elmer's a good bit now and love it too! Although I don't like it as much for binding, I seem to do better without it for that step. It's great for sandwiching and for holding bias-cut pieces together so they don't stretch too much - I used it a lot on the last OBW quilt I did and it was really helpful.
I just have to watch it when I'm sandwiching...if I put it on too heavy for that initial layer it soaks through onto my floor! It's laminate so no harm done, I just have to remember to mop right away or I end up with weird spots of dog hair stuck to the floor. LOL! Fortunately it comes right off with just some warm water and a mop, but it was pretty funny figuring out why I had some sort of gross dog-hair art project going on all over my livingroom floor!