What do some of you seasoned veterans use as a bedding sand for irregular flagstone? I have used stone dust in the past, but it is a PITA to level the stone and then I seem to have more rocking stones that I am comfortable with. I have seen some guys mix water and stone dust in a wheel barrow and then set the stone in the wet mix. I have seen guys use concrete sand just like pavers. Also, what are you guys using in the joints? BTW I just rather do pavers or wet set flagstone. This dry set sucks!