No disrespect mate, but difination isnt the bee all and end all.

you got aerobic strength, LT threshold, technique, your bodys own ability to process lacate as energy source, core strength etc etc.

so dont get cought up with defined is best. its about being as efficient as possable. plus different ride style's effect you look, sprinters are generally biger more defined than hillclimbers.

theres more than 1 way to skin the rabbit.

And before any-one mentions Ulrich, theres always exceptions to the rules.