sometime soon, maybe a few more days, 2 more inches or so. up to you though, if you want to wait longer and get a bigger monster, totally up to you. and what space you have anyway
if you really wanted you could grow monsters in here, of course it would take longer. up to you. 8-10 weeks after you set 12/12 youll have buds no matter how big they are when you start, but they will double to triple in size.