Something to consider: If you do the test in an amphibian and do landings & splashes in the test you can gain both SEL & SES from the one flight test. You'll have to do the water training of course, but it's a way to have a bit of fun & get two qualifications out of it. If you apply for it, Oz CASA will add a floatplane &/or floating hull endorsement (depending on what you flew in the USA) based on the FAA SES.
I did my ATP-SEL/SES in a C180 amphib based at Flagler County Airport in Florida. The bloke's name is Trip Wacker. I think he has an amphib Maule and an ambhib Beaver now . Really good fun. Bear in mind that mine was an add-on to my ATP-MEL so the ground questioning wasn't as involved as an initial issue.
Last edited by Tinstaafl; 12th Jun 2013 at 16:17.