You will see from Jim's answer to the fellow ("Anonymous") on the thread immediately before (below) this, that we do not advise deliberately cutting or tearing of the frænulum. I haven't added to that as I can't think of anything major to add. If it's short, you stretch it, and since the frænulum is necessarily part of the "ridged band" mechanism that closes the foreskin, one almost always needs to stretch both the length of the frænulum, and the diameter of the foreskin opening.
On the other hand, I refuse to see anything "magical" about the frænulum. Some people become so passionately against genital mutilation (circumcision) that they wax lyrical about the "special nerves" and blood vessels in the frænulum, and blame cutting it for the development of meatal stenosis (damage to the urinary opening) which is a common complication of circumcision, particularly in young children. (This is of course, directly due to having the relatively delicate meatus exposed on the very tip of the penis, which then rubs against nappies, clothing, bedclothes etc.)
The fact is, being a midline structure, the frænulum has no special nerves; it is only the
terminus for no more nerves than any other part of the skin - no doubt it hurts when you tear it!
It would appear to have two interesting functions; one being to "flip" the foreskin forward again when you've finished "using" your penis - in other words, when your erection subsides. The other is in a sense, what you have described; pulling back firmly n the foreskin pulls on the frænulum, and pulls on the particularly sensitive area of the meatus and
that is why the area of the frænulum is noted to be particularly sensitive.
I am sure that pulling the foreskin back
firmly does pull the glans downward, but of course, that is not a necessary part of sex - you either
choose to do this or not as part of manual stimulation, depending on how pleasurable you do or do not find it to do so. In intercourse, if the foreskin gets pulled back with excessive force, that would indicate a
problem with insufficient lubrication that you would do well to attend to, as it is almost certainly causing the lady some discomfort (afterward, if not immediately).
As I have said that there is nothing special about the skin of the frænulum, there is nothing special to do in respect of the cuts. Do
not try and treat them with "antiseptic", as this will
delay healing. As to stretching, you need to do this sensibly but persistently, whatever part of the skin it is.