Hi, I'm pretty new to guitar and have two technique questions, hope I can explain it OK, my English is not the best.

First, when pulling off should you already have the lower note fretted when you pick the higher note, or do you bring the finger down on the lower note as you are pulling off, or does it even matter?

Second, when playing arpeggios I can do the rolling of the finger in this direction:

but how do you do it going back the other way like this:

I can't do it so it sounds smooth.

Thanks for your help, great board.
Try searching on a youtube for a sweep picking explanation video. Altough sweep picking is a lot harder, it somehow shows you how to play an arpeggio. You'll see what i mean