Tires make a hugh difference in the amount of tugging. The Conti-ExtremeContacts are great for riding thru puddles.
The tug is minimal and I agree that it is from more resistance in the puddle and not hydroplaning in this case. Hydroplaning as pointed out above will raise the tire off the road.
The other aspect of the CoExCo tires is that when driving thru a puddle water no longer splashes out the front of the tire and up over the hood. The tire channles the water away to the sides. Not the best tire for dry traction but great in the snow and water.
__________________
May your transmission live forever.
SuperbVehicleXtraordinary
Proud sponsor of a 1992 SVX.