Finally got started on the mod to convert my Tethys to dual deployment. I've been kicking around ways to cut the QT bodytube and finally built three U-shaped brackets to hold the bodytube while cutting on my table saw. First I used some paste wax on the inside of the brackets to allow the tube to rotate easily. Then, I got it all squared up and clampled down, held the tube against the fence, raised the blade slowly and rotated the tube a complete turn before raising the blade more. Took about four passes so the cut would be clean. I made good use of the originally installed piston by positioning it where the cut was to be made to keep the tube from distorting while cutting.