40 lines - 28.36s
My previous best time was 29.85 seconds using 6 DAS / 0 AR. I switched to 5 DAS / 1 AR for this run.
I could have finished with 1 less piece near the end if I placed the J in the leftmost column and the I flat.
The background is one of the old NullpoMino backgrounds.
The mino blocks are made by gif - http://to-p.tk/forum/viewtopic.php?f=6&t=47