I have record of 22 haplotypes which tested Z63+; 17 of them are in the T2 clade, only 5 apparently outside of T2. There is a substantial Z58- Z63- Z131- population --- presently still I1* by formal name --- outside of the several clades Z58- Z63- Z131- This generic I1* population looks to have a TMRCA of 4100 years by variance estimate. The Z58+ population carries the bulk of I1xL22, but it divides into a number of different and interesting branches. FTDNA will hopefully someday put some more Z series snps into its catalog, along with DF29 which is a very interesting upstream I1 snp.