You mentioned that you have similar working hours to me, did you consider trading the afternoon using day trading strategies?
I know that one strategy is to short the afternoon fade, whereby the price enters a trading range, fails multiple times to break out to a new high before eventually breaking down below the morning low, with an optional test of resistance before free-falling! TBH this sounds risky, so you would definitely want to have one eye on the charts and the other on level 2
I have looked at level 2 quotes before, but quite often you see large bids or sells that are just canceled immediately...or sometimes they aren't...I really couldn't find much of a pattern with them when I looked, so I abandoned them for the time being. Also, they would be quite difficult to manage on a 2"x3" screen.