I love CT thread! I use it for piecing with Superior's Bottomline in the bobbin. Individual spools/cones and colour collections are a great buy and even better when on sale.
BTW, check out their wonderful fabric: it's easy to find $50 of goodies and get free shipping. Well, $7.50 to Hawai`i but I can't complain about that given I've gotten to the checkout at favorite online companies found on this board and discovered shipping costs to be in the ridiculous range ($85 shipping for a couple of FQ bundles anyone?).
As for lint, you should clean out the bobbin area every time you change the bobbin anyway.