I know this type of question has been asked a bunch on here, and everyone is told to look at the riser calculator. I thought I would ask anyway. My HT room is going to be about 10' wide X 22' long. I will have a 101" diag. screen that is 90" wide and 67" tall. The bottome of the screen will be about 36" off of the floor (I know that's low). So, what do you think as far as riser height. I will have two rows of seats 2 in front and 2 in back. I was thinking of placing the first row at about 12' away from screen, and I guess about the second row would be about 5' behind that row which makes the second row at about 17'. So what do you think the riser height should be? The calculator annoys me in that it asks for the height from floor to eye level. I don't know this. Any advice? Thanks in advance.