Courtesy of the David Vance SAPP process.

Dave Vance Named FamilyTreeDNA General Manager
www.jdvsite.com - The SAPP algorithm
0---Node# 881: Est. TMRCA: 41 generations or 1148 years ago (802 AD)
        1---1015265 David Gilkey 1732-1820, Ireland:  Big Y-700, 111 STRs FTDNA Known SNP: BY98292 BY98292 Est. TMRCA: recent. Kit is courtesy of the FTDNA M222 Project.
        1---108214 John Agnew 1819 Antrim, Ireland: Map Big Y-700, 111 STRs FTDNA Known SNP: FTD83196 FTD83196 Est. TMRCA: recent. Kit is courtesy of the FTDNA M222 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).