Just tested it and it worked like a charm

So now even if they where not made by MD i still get all the good effects of clothing..
I didnt drop the old ones i can now convert then using this method to turn them into dynamic clothing..
(well they where made for G2F and another body morph but its easy to convert them to my new G3F new body morph just like 5 clicks and moving a slider then send them to MD for physics calculations)
I changed the method because the old one used vertex weights witch need hours and hours of tweaking to get a skirt move right (or any other joints) when legs are moving ( in the past i had to manually correct all those errors by hand.. and before asking anyone else to help out i had to simplify everything possible as you might not be as good as me with vertex pulling lol ) while in this method you just let the program move the clothing for you in the right way.. (well sometimes you need to pin some parts but really easy to do so)
If i compare the 2 now.. its hours saved on more complex clothing for a natural clothing draping VS pulling hundreds/thousand vertex by hand for a average clothing position.