there were no sinister reasons, at Stotfold the choice was Schumacher yellows or greens, ballastics gave no advantage in any conditions and originally our intention was to specify a tyre that would work as an alternative, we had some limited testing of the GRP and found that it worked in the dry but was no better or worse than the schumacher, this we felt gave the racer an alternative, however with no wet compound in the GRP range there was no alternative if the track was wet. following discussions with the BRCA committee the options were to specify BB's which at least gave the racer two options for each weather scenario, we were also aware that we would be the only track specifying GRP for a national, we would have continued to spec that tyre if it was clearly better than the alternative, it wasn't so we decided to stick with BB's
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