@JDarwin Your 90% stat seemed really high ... so I checked. You can find USA Water Ski's 2010 financial statements here: http://www.usawaterski.org/graphics/downloads/TaxForms/2010AuditedFinancialStatements.pdf
I'm not a CPA, but from the expenses reported on this form it looks like USAWS spent $37,207 on "National Teams" in 2010. In 2009 it was $49,875. For some perspective, $37,207 is 2.5% of USAWS's expenses of $1,454,003 (on $1,750,285 in revenue). Even if some of the international team costs were included (or hidden) in other line items such as sport disciplines or sport development, the top two expenses, Membership (salaries, benefits, etc.) and Publications (The Water Skiers, regional guides and I'm assuming the website) are a combined are 60.6% of their expenses. So, there is no way international team expenses could be anywhere near 90%.