NO idea, i do not have that Mushkin kit, and haven't had a chance to play with it. It might depends on how the secondary timings are set up, which IC the Mushkin uses, etc...
What I can say is that the Samsungs are going to cost you far less for the same capacity(AFAIK, the mushkin's sell for $179.99, with which you could very nearly buy 32GB of the Samsungs).
I relyl don't have any idea as to perofrmance or anything until I am at hte ponit of making graphs..I do stabiility testinhg without looking at hte actual speeds or scores, just focus on whether the kit is stable or not. A big part of my final score is how I fell when doing the testing, and how the sticks respond to the changes i make trying to bring stability back.
Then, I typicalyl write up the main aprt of hte review, the part before the testing. Then I make the graphs, get them hosted, and then look at the results adn copare against the numbers i already have.
Technically, i thought the G.SKill kit was going to be the better of the two, but performance-wise, the Samsungs win. However, I feel more confident when clocking the G.SKills...so it depends on what you are really looking for...heck, I'll buy ram just because i like the heatsink(or lack thereof).
If Mushkin decides to send me a sample, I'll let you know what I think then.