"Anthony
Problem is most people use that combo. And it hinders the point of the game if everyone knows the performance of everbody else's equipment. You must learn for yourself, I guess, even if it costs you £10 million to change partners and back again just to see if they are better than yours or not.
And for this reason, I think the supplier pages should not publish how many customers they each have. It takes less than five minutes to figure out the "best" suppliers just from that number (though as David says, one of the given suppliers is not the best in its industry). I help run a few private leagues on here and across both of last season's leagues I think probably 2/3rds of the players ran Murk/Seashells/Bridgerock, and a further 15% of them ran two of those three. I purposely ran different suppliers and still did as well as I wanted to do overall (because my main objective was to learn the game). If everyone runs the same gear you might as well call it GP2 Manager.