You should check out Texas Express Track and Field Club. Go to https://sites.google.com/site/dallasvaultclub
. They have a great program and some seriously dedicated coaches.
With a pr of 8' you would also be wise to use the search function on pvp and look at ways to improve closer to home, like high bar drills ,sprinting, grass vault, pole runs, gymnastics etc. There are a lot of ways to get better during the off season without a pit.