Wonderful stick. I got one of those. Never bothered with the 6 button variety. The Sega Arcade stick is a must for Space Rocks!
If you're going to lube plastic parts, NEVER use WD-40 or petroleum based lubes. They will help for a bit but eventually degrade the plastic and make it worse. I've seen more rubick's cubes ruined by putting WD-40 in them.
For plastics, use a silicone based lubricant. Pure silicone oils/grease/gels are the absolute best, but extremely pricey, like the cube lube professional speed cubers use is $20 per ounce pricey!
I use Dupont Silicone/Teflon spray on my Rubick's cubes and it works wonders. CRC Silicone is equally good. With plastics it is advisable to work aerosol based silicone lubricant in vigorously for at least 5-10 minutes after application. This will spead the lube and ensure the volatiles have a chance to evaporate. This could mean vigorously scrambling a cube puzzle or playing arcade games with a joystick immediately after application. Otherwise it could bind the plastic slightly.
Yeah, I used to be into twistypuzzles a few years back but gradually tired of the hobby.
EDIT: Oh, snap! I forgot about the button membranes. Are they carbon based rubber, or silicone rubber? Silicone oils, while safe for ABS plastics and carbon based rubbers, could potentially be very damaging to silicone based materials. If the joystick is made from a combination of carbon based material (ABS) and silicone based (membranes) then a dry lubricant such as graphite may be your best bet. Water soluble lubricants that don't actually contain water exist (KY Jelly is glycol based for instance) but these will absorb moisture and corrode metalic contacts. Graphite powder certaintly is compatible with all three materials (carbon plastic, silicone, metal) and will even improve the performane of the electrical connection if applied underneath the silicone pads. You just really don't want graphite on the exposed portion of your joystick shaft as it will get on your hands and everything you touch and generally make a mess.
Edited by stardust4ever, Fri Aug 7, 2015 6:18 AM.