Courtesy of the David Vance SAPP process.

Dave Vance Named FamilyTreeDNA General Manager
www.jdvsite.com - The SAPP algorithm
0---Node# 742: BY66403 (est.1950AD)> Est. TMRCA: recent.
        1---580875 John Cassels 1728-1771 Markinch, Fife, Scotland: Map Big Y-700, 111 STRs FTDNA Known SNP: BY66403 Est. TMRCA: recent. Kit is courtesy of the FTDNA M222 Project.
        1---N144915 John Cassels 1728-1771 Markinch, Fife Scotland: Map Big Y-700, 111 STRs FTDNA Known SNP: BY66403 Est. TMRCA: recent. Kit is courtesy of the FTDNA AODH Project.

Note: Dates are measured from the epoch which is 1950 and age estimates vary by 15% to 20%. The few red colored ages (on the SNPs) and the green age at the top is Family Tree DNA's eatimate for the SNP itself. The green in-line ages are the SAPP estimate for the kits being analyzed (not the SNP).