If you're talking about the SLIDER mechanism, you don't want it too loose. If it's overly sticky, as mine was:
Take about one DROP of Silicone Spray or WD40 and apply it to a TISSUE PAPER, not the slide itself. I used silicone. Rub inside the slide channels, let dry, reapply. Work mechanism, reapply small "wipe essence" of WD40. Wipe excess. Done.
Screen Protectors: paste car wax. rub in well, reapply to screen protector AND stylus tip, remove. Like glass and FAST; graffiti recognition better, too and the hazing of worn screen protector is partially removed - they last longer. Do that every 2 weeks and you'll make less writing errors.
I also repeated the WD40 thing on the two exterior "hooks" of the cradle except used "OneLube." I don't want to hear from anyone who puts a BLOB of it on their cradle and fries something . . . about a needle-head's worth is sufficient, and put the T3 on and off the cradle a couple of times and remove what should be a MINUTE SMALL EXCESS.
You've been warned - but since you asked - yes, you can "free things up a bit" using a MINUTE amount of silicone (which evaporates the carrier and is probably safer) or WD40.
Of course, if that fails just soak the whole thing in 10-30 for two weeks. I'm kidding.