FTDNA gives my paternal haplotype as R-M269 and 23_and_me gives it as R-CTS4528, what is the significance?

Question

Does this mean the 23_and_me database is more extensive? How should I report the haplogroup when asked? What can I do to further look into this?

Comments

I'd use the most recent one, the most downstream SNP, for matching purposes.  M269 (~10000 years ago) > L23 > L151 > L11/P310 > P311 > S1194 > CTS4528 / DF100  (~5000 years ago).  atDNA tests don't provide significant Y-chromosome coverage, so these tests will only offer rather old haplogroups shared by literally millions of other men. Still, it's potentially useful for ruling out paternal lines being investigated.

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This Wikipedia article may offer some insight. 

https://en.wikipedia.org/wiki/Haplogroup_R-M269

Answer 1

Robert;

It not the size of their database; rather 23&Me simply does a better job estimating male haplogroups than FTDNA. 

R-CTS4528 (also known as R-S1200) was formed about 4800 years ago.  So, men from several European countries and the US are matches:

R-S1200

FTDNA can go deeper, but that will cost you extra.

Answer 2

CTS4528 Project at FTDNA