"Should" work or will work ? 
To vouch it's always better to really test the method 
To vouch it's always better to really test the method It will work! another vouch is on it's way (the person is testing the method).
You can send me a vouch copy to pm? I'm very interested on this
All vouch copies given. You can purchase it tho, if you're interested.
Please send me prices via PM
Sent.