Hmmm, yeah, that's kinda my personal term.

Okay, let's go with more common objects:
Golf club - held at the handle, a club is "end weighted" and less 'twitchy' than say a broom stick. It 'likes' to spin in flat planes and doesn't change directions easily once it's moving ... like a gyroscope. The up side is that slight movement problems in your swing are erased (making it good for golfing).

Broom stick - held at one end, the entire length is the same weight making it "even weighted". With the perceived center of gravity closer to the hand (and less weight overall to manipulate) the broomstick is easier to get spinning fast, and changes direction with the slightest twitch of the hand (ie "twitchy"). The advantage is that the users can practice anything from a flat spin to rapid direction changes without undo stress of the muscles and joints.

Think of a yard stick. If you hold it on the end with numbers 1, 2, 3, and 4 then the perceived center of gravity of the yardstick is in the middle of the stick, or #18. If you attach a weight at the #36 end that's the same weight as the entire rest of the yard stick, then the perceived center of gravity moves out to 34 or 35. In other words, not only is the stick heavier, but it feels longer too. Same thing for staff. Small wicks and light weight feel shorter and are easier to use, but are also easier to make mistakes with. Every little problem with your spin shows up readily. Not particularly good for performing, but really good for learning.

yeah cause the metal piping I got is definitely around the 4-5pound range.