andyson: This is what I would expect. No program runs without using resources. Thanks for confirming it.
I hate to be the bearer of bad news...but i tried the flashblock thing yesterday...and it seemed to massively speed up game loading time (instead of 20 seconds it took more like 2 seconds), and i had very few meter issues. Although today i had a hard time logging in w/firefox, tried it with IE and had no trouble...since then i've disabled flashblocker and have been playing on firefox without it running, as firefox seems to be way smoother and faster...
I must admit that i'm not sure if flashblock is related in any way to my minimal meter issues, i rarely have any as i run a laptop, and a desktop both Core i7's set to run IE &Firefox on a single core...and i do hold my swing for a few seconds prior to letting it go (andyson's advice)...However my internet is nothing special...pretty standard DSL at work, and cable at home...but i can say this...Flashblock did not make my meter worse, not in the way others are describing.
Some more knowledgeable people could answer whether or not the Flashblocker itself is using more resources than all of the flash items it is blocking combined, as many things on the WGT site are done with flash.