testing of MARID proposals

At IETF 60, I was approached by a very large ISP willing to do some 
testing of the MARID proposals (Sender ID & CSV).  They have asked for 
advice on testing, so I thought I'd ask the experts (you!).
Quite simply, they are seeking advice on the variables to measure and 
guidelines for deployment and evaluation of such tests.
Their hope is that they will be able to come back to the MARID working 
group with a report on what they have found.
So, your advice is welcome.  But I do ask one favor: please do not 
formulate any such advice in the form of Sender ID vs CSV.
-andy