I saw some addict pro's last weekend, and got some feedback. Not sure if it has posted, but:
They have a full carbon fiber tip and tail under the base(which is sorta see trough).
Also, due to the sorta see through base, you can see the FULL re-enforced edges all the way around. Definatly look really solid, and the seem really durable.
Also, i flexed them and they are really really soft in the tip and tail, but have a fairly stiff underfoot.
Just thought that i would put in my $.02!!