[8 Hour Whore]

To answer you
Van
Try sliding more
slide your middle finger from up to down and just make it a motion
alot less of a hassel as for middle trills
slide only your middle finger works really well
For middle doubles just use your middle finger on both keys.
Also.. I know i've switch to Spread and all but this score was actually one hand.
If you will take it cool! If not I understand why.. Lol