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exactly. $170 down the drain. Take it to someone with a reputation. I think you will be fine Mike. If I had a company like Falicon in Australia I would not have had to learn how to balance a crank.
So to sum up if the above post is confusing.
The balance factor required to balance a crank is dependant on the weight of the crank counter-weights "web". The more you lighten the webs the less balance factor you need to use to balance it. If you want to balance it with a higher balance factor than you need to make the webs heavier. This is done with mallory as explained above.
Webs can also be knife edge and filled with mallory to look cool, but the overall weight of the crank has not changed.
This photo from Falicon is a 'Heavy' crank. Notice the mallory that fills the hole. Unless the crank sits in oil, the knife edging and mallory are just a waste of cash, unless you change the weight then of course the balance factor.
This is how I know the stock factory balance factor is 100%. There is no mallory in my crank.
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