When figuring loads, don't forget to look at the load positions on the forks.
I would also get the attachment for rigging speakers and keeping the forks from compressing towards each other.
Fork position ratings are very important. It may look like towers from different brands are similarly rated, but the fork position may tell a different story. We have Mobil Tech and VMB cantilevered towers. The VMBs are a superior product. Easier and a little bit smoother to use. Though the VMBs are much larger with a higher weight bearing capacity, which makes them less easy to move around.
I have found different products from Pro-X to have varying degrees of quality. A colleague of mine bought some Pro-X trussing and it was missing welds in some places. Not purposefully omitted, simply overlooked in the manufacturing process.
I used to be concerned about the forks compressing toward each other, then a friend pointed out that the "squeeze" load is actually less than the "lift" load, and it is all loading the exact same components. The forks could not possibly squeeze together without them first bending toward the ground.
