I don't know what's special about a Husky 2100, but that 5200 to me would be the Holy Grail of saws. Nice find if you ask me. Not to many Poulan around here, used to be a lot of Homies though, dad had a Super XL-12 and pa had a XL-12. When dads bow saw died he bought a 330 Homie which didn't last as long. I was the first to buy a Poulan, then he followed suit, that's all he ever ran after that til I bought a new Echo, then my brother got him one a little smaller that he could handle with out all the weight. I've ran my for about 5 years without any problems, that sold my brother on Echo, of course he a Stil man.
Steve