This was really the only place I could think of posting this... but yeah. Sorry to disappoint all of you who loved my first mod and suggested improvements, but the improvements you've asked for refuse to cooperate with me. I've done everything I can think of but the problem seems to be that all the weighting gets reset when I multiply the vertices and re-weighting doesn't work... at all. :(
Thank you for so many positive comments and thank you for all the suggestions of how to improve my mod. Perhaps I shall return some day with something else, but for now I leave you with my small contribution to the community and no sign of a v2 being possible.
If anyone wants to attempt a fan update, you have my full permission to do so. :)