Does anyone else out there have a maspyr? I am interested in how they turned out. How big did they get and what was their disposition etc. I find it difficult to find out much -about this breed on the net. I have a maspyr that was born 7-24-09 and I have graphed his age vs weight in comparison with a couple of full blood english mastiffs so as to maybe record some information that has been difficult for me to gain. Thanks and I look forward to hearing from anyone. Read more blogs by belder | Read more blogs in Designer Dogs