In regards to microdosing I've done it the past two days actually at 400ug and today 300-325ug and yes, it will definitely still affect your sleep 12 hours later, if not 14-15. I took 0.5mg of etizolam at 1am last night after work after having dosed at 11am and while I knew I still felt the DOC, as soon as 35-45 minutes had gone by and the tiny amount of etizolam hit, I realized how much it'd still been affecting me.
This one is strong as hell and has legs like you wouldn't believe. My preferred microdosing range for this is actually 100-200ug, 200ug sometimes even being too high. Yesterday turned out fine as I had a fantasticly cathartic emotional breakdown and subsequent re-evaluation and perspective change, leading me to then feeling amazing after. But today, even at 300-325, I was very shaky and not comfortable in my body working and doing everyday tasks.
Volsam, I know everyone says this one takes hours to peak but from my experience I'm at 85-90% peak level within 60-80 minutes, the rest of the "come-up" being barely noticeable if noticeable at all. Just in case you're thinking you'll have two or three hours of negligible psychedelia in which you can be around people normally - which actually, DOC I totally can unlike even 2C-B - and get surprised.