Thats a very interesting topic you have there...good job polaki, brought it out into the open at last...
Herblore capes are extremely hard, but whats the prize at the end? the most common cape is either attack, strength, or defense i think.
Ive never seen a construction cape, yet most people have houses. maybe they stop when they get a gilded altar or something.
fishing at lvl 76 gives u almost 1k per shark, at 75 woodcutting you cut magic logs which are about 1k. at the 70-80 level, you get most of the "good" items and materials such as barrows(def, mage, range, atk, str) mage logs, sharks, ranging potions, and other such things.
it "should" be balanced, but some skills just arent. Why did they make the cooking level not the same as the fishing level to fish/cook the same fish?!?!