Re: MrLarkins Upgrades
On one hand I can guess that 3 screws will hold, going by (guessing) that the outward forces will not be stronger than the cross section of the three together.
OTOH I would think you would want the force to be evenly distributed.
You actually have a full 1" of tube to cut (length)? Can you get a small hacksaw blade in there? Sawzall (careful) with a small blade?