--The Senate would be represented equally by states, which is unfair to states with larger populations. --A tiny executive branch would choose the entire Supreme Court, whereas under the Virginia Plan a larger legislature will elect members to the executive branch.
A hand-held pick or plectrum can only be used to pluck one string at a time, but multiple strings can be strummed by one. Plucking multiple strings simultaneously requires a fingerstyle or fingerpick technique. A strumming pattern or strum is a preset pattern used by a rhythm guitar. Compare with pattern picking, strumming patterns may be indicated through notation, tablature, up and down arrows, or slashes.
For me doubles are a little easier with trad grip, but oddly a buzz roll is easier to do really smoothly with matched grip. If I'm playing that really jazzy left hand style with lots of buzzes on the snare, I'll play trad. Mostly I play matched no matter what style I'm playing, but I switch to trad grip here and there and when I do I don't even think about it. I really think that I'd be a better player if I just concentrated on matched grip and worked up everything that I was having trouble with that grip.