Doesn't one of miauu's scripts do what the first one does? Might be in one of the script packs (http://miauumaxscript.blogspot.com). Could also be I'm remembering it wrong of course.
For the SplineFFD, you can check out rapidTools set here https://rapidmxs.com/store-main/rapidtools/ it has many other cool functions as well. If you want falloff just turn on the max standard soft selection.
Replies
http://www.scriptspot.com/
https://youtu.be/6-5jvPfbjp0
https://mariussilaghi.com/products/smooth-edges
If you want falloff just turn on the max standard soft selection.