Dear Jim;
Nice post, I have used many of the same points myself in regard to disproving YEC flood theories. I believe however that there is a case to be made for a global flooding event towards the end of the last Ice Age due to a large and sudden transfer of water and ice from the ice sheets into the oceans before isostatic adjustment could compensate for the shift. A rise in sea level that reached the edges of the mountain glaciers and continental ice sheets, would be a global flood since any additional increase in sea level would make no real difference since the ice would float anyway, so no further effective real submergence is possible with any further increases in sea level. There is evidence to support the occurrence of such an event, much of the evidence has been debated extensively in the 'Solving the Mystery of the Biblical Flood' threads. Currently I am following up on the traces of marine diatoms I have found here in Wisconsin as evidence of a recent marine transgression.
Wm. Scott Anderson