#1
So I preimarily play metal. Stuff like Dethklok and Amon Amarth. And I've noticed a problem with my sweep picking. When i try to play something like

E|-13h17p13------------13h15h18-|
B|--------------15-----15--------------|
G|------------------14------------------|

It ends up being

E|-13h17p13----------------13h15h18-|
B|--------------15---------15--------------|
G|------------------14-14------------------|

With me hitting the lower note twice. This happens whenever I play a sweep. Does anyone know how I can fix this?
#2
slow it down
you cant play it comfortbly at that speed your playing it
#5
Is it alright to play that lick in Economy Picking style, where 15 upstroke, 14 upstroke, 15 downstroke? As opposed to 15 upstroke, then 14 downstroke, 15 downstroke.
#6
Play the note you are hitting twice as the first note of the upstroke sweep as opposed to the last note of the downstroke sweep.
Inhuman evil take down!