hard drive advice requested

I finally started refurb on a drive rack, a nice low-boy HP 29425 with wood top. It's my first HP drive project that uses the 13037 subsystem, with a 7906 drive. This is so I can finally start going through all the 7905/7906 drives I have and figure out what works and what doesn't. After going over the drive very carefully with a fine tooth comb, checking all the power supply voltages, test point voltages, etc... the moment of truth - hit the load switch, then turned it off just before the heads loaded. Did this a few times to make sure the blowers sucked any stray particles up and to the filter before letting the heads load. Finally I let them load and got a nice clean (fortunately quiet) "drive ready". Which leads me to my question... In testing unknown drives and cartridges... one never knows if the heads will come out the first time and shred against the platter. I've never been standing around when a head crashes, but I envision horrible grinding noise as metal shards shoot everywhere inside the drive. Is there anything I can do other than visual inspection, before spinning up an unknown drive and letting the heads load, to help alleviate the bad possibility of a crash on a drive that probably hasn't been used in 25+ years? Jay West