If "selective sparring" is queing in the main room, sparring whoever comes along, then yes... I'm guilty. I think I speak for (most) decent sparrers when I say: I would rather spar a good player than 10 bad players.
Also - yes to what Thallen said. If you need tips you could PM either of us and we'll probably reply if you aren't an idiot (i.e Simple-Z aka Ash Ketchum). If you to be taught more in-depth sparring techniques thats what I made Apfelsaft for, a guild for [relatively] new sparrers to learn how to spar.