Tides eh, if I can find some time to breathe I might see if the boys will set this up and have a look (they haven't been playing/testing for a while because setup is a bit of a pain and they are spoilt brats who are used to things being frictionless and easy), I don't know if they've played too many games with actual tides (there is a game involving ships and being pirates that they play but I don't know if the waves on the ocean are actual tides or just waves).
Yeah we are breaking new ground for realism...well trying...we hope :)