howdy!
To 4288;
WEAR GOGGLES AND CHEMICAL RESISTANT GLOVES!!!!!
Easy Off has been used by furniture strippers for decades, and although, as you pointed out, you must be aware of how long you subject the wood to the process, it WILL take off many finisnes.
It is basically a form of lye (sodium hydroxide?), which some old time gunsmiths used as a degreaser prior to blueing.
One tip, when using it: make sure you have not washed the stock just prior to application, nor have any water on it, as this will severely reduce the effectiveness, since it works best on a dry surface. The process also should be done outside, for two reasons;
1. The vapors produced are not only toxic, but stink and release hydrogen, which can burn or explode.
2. The sunlight will improve the action of the chemicals.
Another tip is to use a mild acid solution to neutralize the activity of the caustic Eazy Off (it's a base), once the Eazy Off has been rinsed away.
A little vinegar water works, since it is a weak form of acid (acetic?).
Failure to do so will allow the wood to be gradually weakened, over a period of years.
A good rinse wth warm water alone may work, but the vinegar is cheap insurance, which takes almost no extra time or expense. Be sure to rinse it off thoroughly also.
I found that it was best to spray it on and let it set, then gently scrape with wood or plastic scrapers(toothpicks and tongue depressors work, and can be whittled into shapes which get into nooks and crannies, then rinse. The wood can be softened by the chemical action, so don't poke or scrub it very hard. Once the process is over, you'll need to sand down the grain, which will have been raised by the water. This process may need repeating until the grain doesn't raise anymore. Failure to do this will result in the grain raising later, as it absorbs humidity, after the finish has been applied.
This often-omitted process is called "whiskering", for those who wish to search further into finishing techniques.
I wouldn't use this process on my best rifle stock first. I'd wait until until I learned a bit more in how to use it, but Eazy Off type products can be useful,just read the instructions and work safely.
Thanks for your time.