I can typically make strings 3 1/2" less amo for most of my limb/riser combinations without having to have excessive twists. Hoyt limbs on Hoyt risers I have to lengthen to 3" less, formula another 1/4" longer. So for the most part I'd say yes, should work out for you. Which riser and limbs are you using?
I've found that to be an untrue statement. I grabbed some backup limbs at the last minute before leaving for a travel tournament. When I actually needed them, the string was way too short and the brace height was too high. I couldn't untwist the string enough to make it work. Fortunately, my partially delaminated limb made it through the end of the two day FITA field tournament. And these were both conventional recurve limbs. It may work most of the time, but you better make sure you test first, because sometimes it doesn't work.