I am sorry if this has already been posted, I searched and could not find the answer. Is there any difference between the [words=https://track.moreniche.com/hit.php?w=113512&s=1220]JES[/words] [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]Extender[/words] and [words=https://shop.mattersofsize.com/products/sizegenetics-penis-extender]Sizegenetics[/words] besides the comfort strop/head piece? Is the base unit/screw size the same?