Thanks all.

N20 Class rules:

7. CREW: Class legal minimums

7.1 Minimum Live Sailing Weight, Minimum Sailing Weight, corrector weight location and method of fixation;

7.1a Minimum Sailing Weight shall be the weight of the crew at registration, dressed in shorts / t-shirt or swim suit, and barefoot. Normal undergarments may also be worn with the aforementioned clothing.

1. The NACRA 20 Minimum Live Weight shall be 275lbs. consisting of a minimum of two (2) persons.

7.1b Minimum Sailing Weight shall be the Minimum Live Weight plus corrector weights if necessary.

1. The NACRA 20 Minimum Sailing Weight shall be 325lbs; however, for crews requiring more than 25lbs. plus 1/2 of the additional weight required need be carried.

7.1c Corrector Weights; corrector weights shall be attached to the outside of the main beam or within 1 foot aft of the main beam on or in the hulls or trampoline. Weights shall be curely attached to the boat and shall not be moved while racing. Attachment shall be with tape, or by tying with line led thru
the weights. Screws, rivets, nuts and bolts are not allowed. Weights must be easily accessible and easy to remove for check-weighing.
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So, applying 7.1b.1 - me @205#, me boy @70# = 275# minimum live weight. Need to add corrector weight of 25#s and 1/2 of another 25#s, so total of 37.5#s; which put us at 312.5#s still under minimum weight of 325#s. Correct?