I work for a vet. pathology and human lab.  I seldom have any problem with
bloody tissues , but when they shatter, I place them in my H2O bath for 5 to
10 secs., then back on ice.  Any variances I can think of of is are you
grossing in the tissues  ultra thin?  what length of time do you have in
alcohols, and what percentages?  maybe you are over-dehydrating?  best of
luck, hope this helps.   			I am Lynn Brown, HTL(ASCP)
			Unipath Labs
			P.A.L.(Professional Animal Laboratory) Path