FTDNA now offers an individual SNP test for F3985. FTDNA's tree (based on 50,000 Geno 2.0 samples) asserts that F3985 is downstream from F1756, even though neither ISOGG nor YFull have yet found an example of F1756+ F3985- .

If the 15for15 coupon still works, the price is only $24.