IMHO, Jay is a SMART guy...but his personality is total crap. We tried to order heads and a cam from him and he was a booming butt hole about it.
Ed is also a SMART guy, but his personality is much more real. Just do yourself a favor and don't contact either of them until you are serious and ready. I've worked with Ed A LOT and can tell you he spends 3 hours per morning answering email.
You can only imagine how many of them start with "I have an E cam how much better will yours be" or "what do you think of the TFS heads that summit sells"...blah blah blah.
When I contacted Ed...my email started with something like this:
"Hi Ed, I want to re-do the AFR205's that I have and get a cam. Where do I send the heads and who do I make a deposit check out to....everything is boxed and ready, and I have a check here. I just need to know what numbers to put in it".
You know what, he responded QUICKLY!