I Told myself last fall I'd need to replace my rattled and worn  top chaffer and bottom sieve on my tr97 combine.... well,   I didn't get it done.  I'm  still able to  get  a  decent sample,  but it's  not as easy as it used to be!   Anyway,  looking at  various  aftermarket  poly  units,   my question  is   who make a decent one?   Looks like there are 2 or 3 different mfg's  for  my model yet.   I was pretty happy on how well the original  fingers  worked,  so not too sure  about going with the airfoil design. 

I like the idea of being able to replace  individual rows if they break.  Plus the lighter weight, and  non stick surface of the plastic  has to be a benefit.

Thoughts?