I think you'd better ask those sorts of questions directly to Guernsey Border Agency (Immigration & Nationality Division)
Tel: +44 1481 741420
Email:ind@gba.gov.gg
Better still make a personal visit and get all the advice you need in connection with any special attentions needed regarding differences on the form filling.
We had a member here from Isle of Man who said these 'local' immigration offices are extremely helpful. Much more so than UKBA.