Was out cruising through some channels where it gets very shallow.  I noticed that the trim wasn't responding like normal.  There appeared to be a delay  - trimming was taking longer than usual.  I get the boat back to the lift and try to raise the drive to look around, now it will not raise or lower, and it's stuck just  a bit above the beach position. 
I can hear the whine of the trim pump, so it's not a switch or electrical issue.  This is with the Volvo SX-A drive.  The Volvo manual says to check the fluid level in the trim pump resevoir, however, it specifically states that the drive must be trimmed all the way down or an inaccuratefluid level may result in damage to the trim system.   
  Question - should I go ahead and check the fluid level with the drive in the position it's in now?  My thinking is to add some power steering fluid, get the trim working enough to lower the drive unit where I can then check fluid level and top off again if needed.  Good idea or bad idea?