Stop Loss
Yes they can put stop loss into effect if they need to keep numbers up. Sometimes the states delay ETS dates by using stop loss in order to manage attrition and help manage the retention rates on paper. This is usually done so that they don't have 20 soldiers getting out all in the same month. It's a numbers game and they like to get more soldiers in then they lose. The other reason they may initate stop loss is if a deployment is pending, and they don't want everyone getting out to avoid deployement. Have you heard word on your unit deploying anytime soon?
Staying in and finishing your time as a drilling member of the unit is better than going into the IRR because, like you said, it is easy for any unit (Active, Guard or Reserve) to pull soldiers from the IRR to backfill vaccancies for a deployment.
-VTguard
SFC Anthony Fletcher
Operations NCO
86th IBCT (MTN)