Restricted 2nd to 16Master

Does anyone know if a 2nd Mate with a tonnage limitation is still eligible to take the crossover exam to 16Master.

Currently have a 3rd Mate UNL Oceans and rapidly closing in on the 180 days that are usable working as an AB accruing Days on a 2 for 1 basis. Some of the days are over 1600 ton, some are on a 500 ton vessel. Curious if I can still qualify for the crossover exam if/when I upgrade to 2nd Mate but have a tonnage restriction.

You should. Basic sea time requirement is 1 year as mate, with the same AB 2 fo1 rule. Get as much as you can, when you can.