Sorry, but it is not rubbish!
If you care to re-read my post, you will see that I specifically mention Gav's 2004 (S1) Car - not the GT3 S2 Lotus Cadena car of 2006, to which you refer.
Also, for your information, the GT3 S2 cars use wheels specifically made for the Lotus Cadena cars.
Below is a picture of Gav's 2004 car, which early on in the season used Speedlines, but changed to Rimstocks because of the wheel bearing problem, which cost them race finishes. As stated earlier, Sean & Russ have also suffered from the problem this season, & to further emphasise the point, the Plans Motorsport prepared S1 cars in the Mid Engined Series, no longer use Speedlines because they too had cooked bearings.
I am happy to concede that it is probably only in race conditions, that the problem arises, but none the less, the point is valid. I posted my original comment because you run an S1, & thought it would be useful information.