Blast is hands down the best thing I've used for encap and padcapping.
Disclaimer: I've only done encap once and it was with Blast...But I've padded as much as the best of them.
The 2 part system really works well when you're deciding what to use when cleaning greasy nasty restaurants or pissy yellow residential carpets.
You can add more of the stain fighting or grease fighting as you seen fit.
Not harsh smell....Jen said "It smells clean"....and she would tell me if I made the house smell funny...Trust me.
No sticky residue...Carpet looks better as it dries because the peroxy keeps working on any yellow that didn't come completely out.
It's my go to juice now...As I use up my peroxcellent on lesser jobs...I'm growing my stockpile of Blast.
Buy some
Here
http://vacaway.com/vaBlast/
You won't be disappointed.