> My experience is that it doesn't dry as quickly as advertised especially
> if the temperature is lower than recommended or the weather is damp. And
> if it's not fully dry it's really tough to sand. When it is dry it sands
> easily by hand.

Right, it doesn't dry as fast as advertised. And resist the temptation to put it on thick to cover surface irregularities. I did this and though it looked great, the thick spots took several days to dry - really messed up my schedule...