Thanks a lot! That's what happens when a "high margin" product is globally recognizable - fake copies start flooding the market. However, I did not purchase this via ****, but in large sports equipment store, from the only Wilson and Luxilon distributor in Serbia. I will definitely contact them ask for official clarification of my concerns!
Now, regarding leading digits and their significance, if any... Please take a look at these French strings, their codes clearly identify French origin, so there should be something with it.
OK, let's see what other people have on their Lux packagings, but I will make this straight with the Wilson representative ASAP.