I would do just the opposite if you can tolerate it - that is, use the tensioning mechanism to straighten your unit but do it very, very gradually. The original Denmark version of the PM was specifically designed for, among other things, straightening but it will take time. What I strongly recommend is to use heat when you stretch especially if you are trying to straighten. It will take time and patience but it can be done. Also, a topical application of DMSO/AloeVera gel will help, too but use it very sparingly if you do as this stuff can get hot and too much will burn sensitive skin - that said, DMSO is a powerful penetrant and will improve circulation and healing. It will soften scarring and allow the relative gentle forces of the PM to work against the plastin tissues and leave the elastin tissues alone.
Sysiphus - the study data on the AndroPenis web site shows an average of 0.001 inch per hour of traction over a 4 month data collection period for ~38 men of varying ages. That study did not use heat. I have found heat (like from a rice sock) to be a huge benefit with the PM.
Hope this helps,