I just ordered some HC-110 from Freestyle on Thursday for the purpose of comparing to the L-110 I've been using, it should be here next week. I can't tell you about the longevity of the L-110 yet, I've only had my bottle for 2 months. When the HC-110 arrives I'll do some comparisons to see if I can tell much of a difference in the developed negatives. Regardless of what I find, I like the L-110 quite a bit. It gives a very pleasing grain character to my Tri-X without the grain becoming obtrusive. Give me a year or two and I'll let you know if the L-110 is still working, if I haven't used it all up.