I may be Cro-Magnon but at least I am not Neanderthal

I have just had the result of a Y chromosome DNA marker test I had done for genealogical purposes which stated I was 100% M343 or R1b Haplotype. I wasn't sure what this meant so I looked it up and found this:-

Around 30,000 years ago, a descendant of the clan making its way into Europe gave rise to marker M343, the defining marker of this haplogroup. These people dominated the human expansion into Europe, the Cro-Magnon.
The Cro-Magnon are responsible for the famous cave paintings found in southern France. These spectacular paintings provide archaeological evidence that there was a sudden blossoming of artistic skills as your ancestors moved into Europe, Prior to this, jewelry made of shell, bone, and ivory; primitive musical instruments; and stone carvings.
The cave paintings of the Cro-Magnon depict animals like bison, deer, rhinoceros, and horses, and natural events important to Paleolithic life such as spring molting, hunting, and pregnancy. The paintings are far more intricate, detailed, and colorful than anything seen prior to this period.
These people knew how to make woven clothing using the natural fibers of plants, and had relatively advanced tools of stone, bone, and ivory. Their jewelry, carvings, and intricate, colorful cave paintings bear witness to the Cro-Magnons' advanced culture during the last glacial age.

This Y chromosome is only passed down unchanged from father to son, therefore my son will also have it and his sons. The purpose being to compare these markers with people of the same surname which is also passed down from father to son.