Hughlett's contract is for two years. It does not include a signing bonus and has base salaries of $420,000 in 2014 and $510,000 in 2015.
Hughlett's cap charge for 2014 would be $420,000 if he makes the roster.
Meanwhile, Aiken's one-year deal with the Patriots, which is technically an extension, calls for him to earn a base salary of $645,000 this season. He received a $55,000 signing bonus as part of the extension, as well as a $25,000 workout bonus, so his cap charge will be $725,000.
When projecting ahead to the competition between Aiken and Hughlett, economics will be one layer to the overall evaluation.
If the competition is close, Hughlett might get the edge because he counts less against the salary cap in 2014, and also is under contract for 2015 for a base salary of $510,000.