How is it a pay cut when you will see the money back at a particular point.
I agree with you in that there is an opportunity cost with what the bond money could be used for but I do not see it as a pay cut. The primary loss is the interest you could have gained ($230 per month according to your calculations). The projected loss on what positive investments you could have made with your $25000 being held away from you are purely wishful thoughts and projections. With the right amount of business acumen, you can make a great deal of money back on investments from $6700 a month.
Lastly, in current times. Who gives a flat 6% interest, you'd be lucky with 2% in Europe.