#1
So it has come to my attention that on guitar my trills are subpar. I know "trill" isnt the technically correct term but I don't know how else to say it. When I say trill I mean

E--------------------------------------------------
B-------15h18p15---15h18p15----15h18p15-----
G--17-------------17---------- 17----------------
D-------------------------------------------------
A-------------------------------------------------
E-------------------------------------------------
i.e very quick hammerons and pulloffs that repeat very quickly over and over. I am especially bad at these where there are two strings involved and need some tips for playing things like this. Right now I am playing it with my middle finger on the 17th fret G string, index on the 15th fret B and I am hammering on/pulling off with my ring finger. Is that how you would play something like this?
#3
That fingering is fine but you should also practice is with your ring finger on 17th and little finger on the 18th. That's so you can move that lick position anywhere on the neck. It may also be more comfortable playing it that way.
Guitars:
EVH Wolfgang Special LH
Gibson Les Paul Studio 2013
Ibanez EW20LASE-NT LH

Effects:
BOSS GT-100

Amps:
Fender Hot Rod DeVille 410
Laney IRT Studio + 112 cab