do you guys think the reason for my wobbling and tight/loosen chainline while riding is because my cog size is wrong? i think my setup is 1/8 48t, 1/8 KMC chain ( think kmc only make blue chain in 1/8), and 3/32 16t cog (i think 3/32). because when the chain is on the 48t chainring its fitted perfectly and i notice in cog, the chain is not fitted perfectly in the cog, i can wiggle the chain side to side when its in the cog. is it possible that my cog is 3/32? and im planning to get a 17t 1/8 one IF my cog is 3/32 right now. because im sick of getting one skid patch. might as well change but asking first to see if my front IS 48t 1/8 and 1/8 chain.

and would i need a different lockring IF my cog right now is 16t 3/32 to fit a 17t 1/8??
also do you guys prefer 48/17 or 48/15