There has been astonishing uniformity in the paternal markers of diagnostic Corded Ware and Bell Beaker males thus far. Regarding V88, one thing I will be watching for is if any of the 200 Beaker samples can be categorized in this group.
The study of human Y chromosome variation through ancient DNAKivisild, T. Hum Genet (2017). doi:10.1007/s00439-017-1773-z
Human Genetics [Link]