I've been reading the report on Cat 3's and was wondering if there was one better then the other. I read where midship is best, are the cabins aft OK? Do some have the plexi and some have the steel wall? I was thinking of upgrading at the port but did not want to pay for and get left with a bad Cat 3 with steel wall on the verandah. I am in a Cat 4 8588. Thank you in advance.