More suspension losses

I lost a full bidon on today's ride.  I noticed it was gone about 22km from home, but could not recall a particular place it might have jumped out of the holder.  There were a few rough descents.  I continued around a loop and rode back along a road that I had ridden earlier, and found the bidon about 14km from home.  It had suffered some gravel rash, but was still full.  Not enough suspension can cause loses.
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JS