Yes, I have two M1A1s, one is a Detroit tank, the other a Lima, Ohio tank and I have two IPs. I have to maintain them since there are some units in the Army (National Guard only) that still have them and if they show up at my school, I have to be able to pull out the proper equipment. I still have an old M901 ITV, M548 Ammo Carriers and M578 Light Recovery Vehicles that are likewise just taking up space. At least with the IPs, the procedures are still the same for pulling and splitting the pack as for an A1 or A2.