QUOTE(Mr.Ace @ Dec 2 2008, 11:30 AM)
well not really it is advise to use silicone rather the
WD40 because contain Liquefied petroleum gas which in result dissolve you cube which may break the cube`s core if you spray it too much.
but in certain amount WD40 is good to break-in a tight storebought but becarefull to washed it thoroughly after one night to let it stop corroding. .
the inconsistent you talk about can be easily be be avoid by randomly scramble for 5 minutes or so to even it or just a simple change of tension on a DiY.
cheers.

Both WD40 and CRC808 Silicone Lube are both - lubrication and protectant - on proper intended surfaces respectively. WD40 is widely used for metal while the CRC808 is for plastic. Both should only be used on the recommended materials as instructed.
Liquefied petroleum gas in WD40 is not the main cause of damaging the cube's plastic if applied on. It is the solvent (White spirit) in WD40 that infused onto porous plastic material and there it remained doing its lasting damages. Usage of WD40 just to break-in tight newly brought cube is not advisable even for a short while - your typical cleaning detergents can't reach the porosity of the plastic already made resident by the solvent.
A screw and its complementary thread mate are designed as fastener to hold objects together - the greater the friction the fastener has the better and consistent it will holds the object. Any sort of lubrication on either surface - screw or its complementary thread - will defeats this engineering purpose. More so when all the spinning axial are directly perpendicular to the core+screw mechanisms that hold the pieces together - a good reason why neither the core's threads or its screws should be lubricated.
An improvement of the current core + screw + spring design is to infuse the core and screws into a single unit. The infused screw is now by itself a single piece wrapped by the core - imagine all the screw glued altogether at their caps. Each thread from the "screws" should be protruding outward now from the core instead into the normal center pieces. And nuts are used to adjust the spring tension instead. The resulting improvement gives better consistency (no interplay among the screws and core), pieces hold up well as the core is now equally spaced apart and longer lasting of the core. The rest is only a matter of adjusting for equal tension and choosing the right springs, etc.
...and not get any idea of applying for patent for this newly improved core and screws design that's not your originally.

Added on December 2, 2008, 3:38 pmSo how many of you out there would like to see this newly improved core and screws infusion be put into production? I leave it among your own to do the polling.
...maybe Made in Malaysia's cubes on their way.
This post has been edited by NxNSquares: Dec 2 2008, 03:43 PM