From the meeting, I thought there was a 6 hour maximum to get the $30, but I am probably confused. 
We discussed all this at the BOD meeting last night. The intent was to have the NET dues stay the same as 2010 for all Family/Single members who submitted a minimum of 4 work hours completed in 2010.
By raising the dues for 2011 Single/Family memberships to $125 it would mean those members with 4+ work hours, worth a credit of $20, would have NET dues of $105.
So to get back to the NET $95, members with 4+ work hours were afforded a $30 credit to 2011 dues; $125 - $30 = $95.
The 6 hour minimum work hour requirement is for 2011 which will give any a member who completes a minimum of 6 work hours in 2011 a maximum credit of $30 against their 2012 dues. There is no MAXIMUM work hours, only a maximum $ credit.
Colin