There are hundreds, possibly thousands, of Hg I1 individuals tested at FTDNA who have not joined a haplogroup project.  Of the ones who have joined a haplogroup project, there are hundreds who have not tested even the defining SNP, M253, much less any downstream SNP.  I would urge these individuals to join a haplogroup project and consider SNP testing.

To make it easier for my project members to understand where they "fit" in other versions of the haplotree, I've compiled the table below comparing the FTDNA labels to the ISOGG labels and clade-based labels.  The clade-based labels are derived from a modified version of the haplotree compiled by me using Terry Robb's tree, Ken Nordtvedt's trees, the YFull Experimental Y Tree, and other sources as a starting point.  The final form of the tree below is based entirely on the matrices, which also means the ordering of parallel SNPs is arbitrary.  No age or time is implied by the lengths of the branches.  Any errors or omissions here should be considered mine.