MKelley:
Boy I sure got the GB buzzing by just mentioning....... salt chipping............
LOL.. Yeah, well... I don't like to tell others how to do their stuff, but I do chime in with the "Old School" tips and techniques when someone has re-invented the wheel... (Not to mention FSM's "Reader Tips" that someties show up as "new" when actually, I first read about them in something like, FSM's April '85 or Scale Modeler November 78, lol)...
The main thing about about the salt-chiping technique is like what TM pointed to... Some can do it first time out, some can't, some have trouble with removing the salt, etc..
Not so with the rubber cement masking... It's usually a 100% success-rate, even for first-time users (although I recommend a short practice session and try it on a hangar-queen first, just in case)... It also works for masking cockpits (just cover the canopy in cement) and for masking those pesky little windows that have to be installed from inside fuselages...
While I do see some benefit in salt-masking in certain areas where the fit is tight, it seems to me as it's more labor-intensive than it needs to be...
Bottom line is that I'm not saying, "Don't use salt".. I'm just saying, "There's an easier way"...