I'll do plenty of research as we get closer to May... Nothing beats the talking to people that have actually been there, tho.. (Well, except Si Modo and LK who I suspect have a zero tolerance of "different" policy).
The no jeans and tennis shoes thing is getting under my skin, tho.. Altho, packing should be light. Seems I'll need a swimsuit and some makeup.
you are wrong about me, i haven't even been to mexico. but you are right, my tolerance level is questionable. in any case, do your research, squelch the noise (like me), get informed, and enjoy your vacation.