Just wanted to put a plug in for a great slide maker in the states that deserves some more recognition (IMO).
I have no connection to Gerry other than being a satisfied customer. I just bought 4 of his slides and they're all great! 1 crazy fiber optic thingy, 2 run of the mill bottlenecks and 1 cobalt blue. The cobalt blue is now my favorite slide.
Great work and very affordable. Check 'em out.
http://gerryglombecki.com/Sliders.html