for what its worth ive used all the ego bolts going and the cure is the best
no breaks ever even in cold weather with training style paint (which is lower qaulity).
some thing to consider also is that in my ego7 i havent even had a barrel pop in so much as about 10 cases, which can also show that balls arent being damaged on their way to the breach (cushioned by the cure bolt).
some barrel bursts can be a result of damaged paint then being blasted down the barrel, so it wont look exactly like a chop/breach burst.
happy with my 07 and cure