Blender
The answer is simple, just look at the drivers.
Your F/W type is a clear eyed extrovert, four bars, five biros and the latest three-time-zone-dick-tracy-special, you know, brush back the flowing locks and with a shining smile-- 'life's a beach!'
The other type, those with just a tad more than newbie hours I mean, --well- a rheumy eyed introvert, the bloody biros have all shook out, the clock has vibrated to AFT, and --'if something bad hasn't happened it is about to!'