I recently reconed my BTL UFO 12" with high xmax option.
I used the spacers provided to space the basket .250" above the bump in the motor.
I first knocked the dust cap off in a huge box I had made for my zcon. 3.1 cu ft. tuned to 32. Glued it back up and I did it again.
I built a new box because I thought big box, over powering, exc. could have been the cause. Plus it didn't sound that great (anticipated)
I have a box made.. 2.4 cu ft. tuned to 32. Knocked the dust cap off again today.
I am using household goop to glue the dust cap. Should I go with CA?
Possibility that the recone was not made to be spaced from the motor?