Don't get why you guys call just silver low... Anything below double AK is low.

Still, my opinion, but it should be everyone's opinion. Been playing again recently. Still bad but it's something new to fuck around with.

low, mid and high have always in cs been used when searching for clanwar, mixes and gathers, so dividing into skill groups logically would be
silver= low,
gold nova 1-master guardian 2 = mid
and master guardian elite - global elite = high