I bought a pair of KSR LX tails through 50resto in 2003.
They look good at a glance, but when I held a flashlight down my nose to see how the reflectors looked I was shocked to see 4 black half circles in the reflectors. The mold that the lenses was formed in was botched, and I guess nobody caught it before I did. The reflectors were defective so I asked for another set.....
All in all 50resto sent me 3 different pairs, and didn't even believe me until they checked their inventory, and damned if all of the KSR LX lenses they had in stock had the same defect.
I then worked out a deal with a guy named Michael at 50resto (He nolonger works there) and purchased a pair of OEM Ford lenses for a discount.
I emailed KSR with their crappy product pictures, and the info that 50restos entire inventory was fugged up. Plus my advice for them to check their molds to make sure that they could sell a decent product...
I got all of my lights (6 pc clear fronts and clear lx in back) from them. They have been on there for about 3 yrs. and not one complaint. Its just like anything. You are not gonna make 100% quality parts 100% of the time.