Zack taped his 40 series Mashers and he says there is no ballooning :
http://www.rc-monster.com/forum/show...=19881&page=23 (post 342). As you can see there are already some slits so it will be easy to install fishing lines or sturdy rubber bands.
I will soon test new bash tires : IMEX Swamp Dawg (
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXWFW0) still with Maximizer beadlocks.