There was a hiccup for a little while with the registration page where the tournament appeared to be a 5k road race set in August. Everything has been fixed and the tournament is listed a little more than halfway through the list of events at the link I originally posted. It's easy to miss, and registration might be easier to find at:http://www.vibramdiscgolf.com/birdie-bash.html
There is a map with the individual locations as pin points, click on the pin point and a window opens up with details and a direct link to the registration page. If you go this route you do not have to skim through the list of 80+ events.
I've had a few questions about the discs, and have reached out to Vibram for a bit of clarification. On the registration page there is a question that asks about heavy disc preference. If you request heavy discs they will be 170+, otherwise you will receive something in the 164-169 range. Due to the total amount of people playing in all of their events they will not be able to fulfill a specific weight request, just the 164-169 and 170+ ranges. All discs will be in their X-Link Medium rubber, which is their most popular blend.
I'll give a brief description of what the discs fly like, if you've thrown any of them and want to add your own thoughts please do.
Summit: Understable lower profile putter with minimal bead. Sort of remids me of an XD. Pretty flat disc.
Ridge: Stable putter with a rim a touch more shallow than a Wizard and less of a bead. Good for putting and driving. Pretty flat disc.
Sole: Stable putter with no bead and a bit more glide than the ridge. Has a gradual dome to it, not flat like the ridge.
VP: Overstable putter with large bead and a bit deeper rim than the ridge. Flight wise similar to a Rhyno.
Ibex: Wider diameter midrange with no bead on bottom. Flight wise straight with a bit of fade at the end, comparable to a Roc that's been worn in a bit.
Obex: Ibex with a bead along the bottom. Flight wise slightly overstable comparable to a fresh heavy Roc or Wasp.
Trak: Stable to understable fairway driver. Flight wise comparable to a Leopard, TL, or Eagle L.
Ascent: Stable to slightly overtsable fairway driver. Flight wise comparable to a Teebird or Eagle X.
Lace: Wide rimmed max distance driver. Flight wise comparable to a broken in Destroyer.