In the last year I've changed from 5.0 Highs to 5.2 Highs to 5.2 Lows (with risers) to currently 5.2 Lows no risers.
I'm finding that I'm really liking the 5.2 Lows a lot. I tried to tweak my set-up in order to help improve my skating rather than stubbornly sticking with the same gear, being lower down has helped my board confidence loads. It's funny but I really didn't get on with a set of 5.0 Lows when I briefly tried those while back, but that was with risers and 56mm wheels.
With these 5.2's Lows I originally ran 53mm Classics with them which to my surprise worked fine for me. I do however run medium-tight trucks with Indy yellow super hard bushings and don't currently attempt much in the way of tricks/popping the board though. I've just moved down to some NOS 51mm Classics now and being a tad lower again feels even better.
I know a lot of you know have recommended this already but combined with a 14" wheelbase deck they're a great fit. I'm on a mini-logo 8" deck at the moment which does the job but it feels a little too wide. Considering going for a Magenta 7.875" next as the listed length and width specs compared to the mini-logo seem trimmed down all round other than the WB. I plan on getting to a shop to measure/double check in person first though!