This question piqued my cuirosity, as I have always remembered the acclerator coming in a spray bottle (and not a particularly fine mist nozzle either - I currently have an Insta-Set bottle, and the spray pattern's about the same as my bottle of Bactine in the medicine cabinet - i.e., not very good). Two ideas present themselves - one, use a small eyedropper to place the accelerator on the glue joint (so nothing but accelerator touches the CA - no brushes glue to the joint here), and two, apply CA to one surface, apply accelerant to the other surface to be joined, and attach them together (I haven't tried this one, but it's stated you get one chance, that's it, so it's not a good technique on days when you have the model-making yips...) Possibly when CA acclerator was first concieved, it was for wide CA glue joints (and especially gap-filling), so a wide spray pattern was OK (just wash off the excess after the joint was harden...which was instaneous! Yay!). Although why those spray bottles still dominate, dunno. Hmm, wonder if a narrow nozzle tube like WD-40 has would work...