I've switched to the MG stuff (IPA/Ethanol blend), cleaned my first time with it on a board the other night. Scrubbed with a toothbrush then wiped with a cloth. No sticky residue, but it did dull the board itself along with the solder joints (I inspected them prior to cleaning, all nice and shiny cones before the chemical clean dulled them).
Q-tips for the component side.
Straight IPA was just a gummy mess, the MG 4140 has the afore mentioned ethanol with the IPA, but I think the Ethyl Acetate is the magic ingredient (but I'm no chemist). Overall, happy with the results.
PS: I've got a 1L bottle of the 4140, but it also comes in a pen-like dealio, which I imagine would be great for the component side of our little noise-maker PCBs.