like you say they can get to there quarry quick to quick they are straight liners.. what i meen is the ones i have seen cant turn quick enough and keep having to make up ground to catch up again instead of sitting behind the hare they go staight in ,,,,all this concludes to the useing to much wind so they end up flat out after a couple of courses ....thats only what i have seen ...and jmo on them ..its no good being fast if you cant turn ask colin macrae...