No, Sir. I have not experienced or compared LZOS or FPL53 glass before.
I proudly own a 80mm doublet scope. An identical version is available at FLO.
I honestly believe that I will not be able to differentiate the visual qualities of the glasses FPL51, LZOS (FPL 52 similar) and FPL53 (or FCD100) because I am only a visual hobbyist and not imaging deep sky.
On the other hand, I have a strong scientific educational background and I work hard for the money. That helps me to judge the fair market value for a product. I would not pay a price of gold for the silver. LZOS is a marketing phenomenon. If there is someone claiming that LZOS is a TAK, TEC or AP similar product, I want to see the data. not only words.
I will be happy to answer if you have any other questions.