I also have the triplinox stainless steel set from Colorado prime.  I have enjoyed the set but the lids don't fit well and I have trouble when I am trying to make stock or something that should simmer covered for a long time.  Does anyone know where I can purchase a heavy glass lid that will fit.  The 10" size for the stock pot seems to be unique.  I have found 91/2" and 12" lids.
Thank You,
JoAnn