Mike,
Would it be possible for you to document the steps you take for the tDSC. Frankly, I find the whole 'at home' procedure pretty intimidating. Ballerina has written some great posts but for me personally, it might be easier to follow you every step of the way.
I had talked to the docs at Beth Israeal a few yrs back but did not pursue the study. I am wondering if at this point the study would be better or going your DIY route.

Thanks
Liz