ZazaCast
Major Contributor
From personal experience, the glidetrack (any igus built sliders... pocket dolly and zaza included) is OK. If you need smooth consistent shots, you may want to go with something else like the DP slider. The bearing on the Igus built stuff sticks A LOT! You will find yourself re-aligning the bearings frequently as well. The advantage is, you could use it in water, it's super cheap to build, and you can make it any size you want. I still use my Igus built slider because that's all I have, but I'm hoping that I will soon be able to get a dp slider or build something similar. The sticky plastic bearing in the igus slider really ruin more footage than I would like.
I find this interesting... with ALL the manufacturers out there using the igus product (Glidetrack, Zaza, Kessler, Studio 4, T-Jib, etc.) you seem to be the only one who's having all these problems and unable to resolve them. This leads me to think you might have a defective piece somewhere? Have you aligned the carriage properly? If you do it correctly, you really only have to do it once. Has your rail or carriage been 'dinged' up from moving it without protection?
There's never been a problem that I couldn't resolve (so far) and I'd like to help you get the quality slides everyone else seems to be getting.
http://www.vimeo.com/groups/zazaslider
Please post some video of you sliding...of your set-up...anything that might help solve your problem.