After a series of false starts, I've finally been consistent with my GST for the first time in several years (and the first time since the stretch series came out) so I thought I would post a picture showing the massive gains (for me) that I've seen in pike mobility in a very short time.
The left picture is November, the right picture was this past Monday.
As you can see not only have my hamstring and calf muscles loosened significantly, my t-spine is significantly more mobile as well. It's amazing how rapidly some of these gains have been acquired. On the narrow and wide hurdler I've been progressing 1/2" seemingly every week!