The sound would be reduced a lot, but it would still be pretty loud. I tried without any baffles and it was loud… I put baffles in and it quiet enough so I had no problems shooting the Condor in my yard, and I have neighbours that are pretty close… and that condor was an 86 fpe .25
Really easy baffling the shrouds. Just need some springs and washers. I used finish washers for this because the are curved. You just need a peice of smaller diameter tube to go inside the mail tube to keep the springs/washers at one of the shroud, or you can drop the springs and just use PVC the entire way through holding the washers.
So while it might quiet down the condor enough without baffles, its not much more effort to reduce the noise even more that theres no reason not too really.