Just fill any spare spaces with independent divers.I think it would be a fair assumption that GUE would limit a full boat charter to GUE divers and expect them to follow GUE procedures, but that shouldn't surprise anyone. If GUE is going through the logistics of chartering the full boat, why shouldn't we limit it to divers that are going to be well-trained teammates for other divers on the boat? At least in Seattle, it's not like we lack enough GUE divers to fill a charter.
Cheaper for everyone