'Uprated' G40 charger bits.

[Justin14100]

been looking around on the german sites for funky G40 parts and noticed they sell 'uprated' things was wondering if they were actually worth anything or not.
BAR-TEK sell the uprated bearings:
http://www.bar-tek-tuning.com/lshop,showdetail,25206,en,1287072766-25398,g-lader.1132925576,1100007,8,Tshowrub--g-lader.1132925576,.htm
anyone tried these - would they really offer the ability to run smaller pulleys like a 63/60mm on a toothed setup?
another one is these sealing stripes:
http://translate.google.com/translate?js=n&prev=_t&hl=en&ie=UTF-8&layout=2&eotf=1&sl=de&tl=en&u=http%3A%2F%2Fwww.roettele-racing.de%2Fshop%2Fthemes%2Fkategorie%2Findex.php%3Fsearchstring%3D%26sucheallgemein%3D%26searchfield%3D%26sortfield%3Drandshop_artikel.artikel_nr%26suchkategorie%3D%26sortorder%3DASC%26dataoffset%3D20%26datacount%3D10
i spose the efficiency of the Glader is all dependent on how well these work - saw on ebay some uprated 'motorsport' stripes before too - might be worth a go if they can raise the boost slightly.
I know the beige strips get you a slight bit more boost so wonder what these would result in. did vw motorsport use different stripes?

[PeteG40]

the 'motorsport' strips i've seen are cheapo ones and i bet have never seen vw motorsport.

[polo classic]

I have used the SNR's in a few hardcore g-laders, eg loads of porting and small pulleys