I have been playing both a YYS and a YYD for over a year now. My YYS was our first prototype (YYS1P) and I took it home in December of 2010. I am very much looking forward to Nostatic's comparison as based on what he has written about the YYS, it will undoubtedly be a thorough and objective look at both.
Trying to be as objective as I possibly can, my conclusions are:
1. The YYS is a wonderful instrument in its own right that has nothing to apologize for. It is flexible tonally, has a wonderful feeling neck and is very much "Fodera." I have played it in small rooms, larger venues (nothing with more than 200 people, unfortunately) and across multiple genres. It has never skipped a beat or made me wish that I had "more" bass in my hands and I own several Monarchs that cost at least three times as much...
2. That said, if you did buy a YYD and paid roughly 2.5 times the cost of the YYS, you would NOT be disappointed that you did. The ergonomic differences from the sculpted heel (if you play in the upper register), additional tonal depth coming from the Custom Shop Preamp and the general awe that I personally feel (and presumably others who are into what we are doing here at Fodera would feel) when looking at all of the joined wood, YY-related designs make it worth the bucks.
Interestingly, I personally thought that after putting my YYS through its paces for 3-4 months and making sure that we worked out any bugs before we put the instruments into full production, I would either sell mine or give it back to the shop as a shop bass. However, I actually have not been able to part with it as I really enjoy playing it. True, if I could only keep one, it would be one of my YYD's (I have two -- one with EMG's and one with Duncan Dual Coils), but the YYS is such a fun, great sounding bolt-on that it has very happily become part of my Monarch Dozen.
I cannot wait to hear Nostatic's third party impressions as I have, undoubtedly, drank the Fodera Koolaid (despite always trying to be completely objective).
At the end of the day, I would love nothing more than to figure out a better way to "skin the cat" and make a $4,750 instrument sound and play indistinguishably from a $12,500 one. Unfortunately, one of the great wonders here at Fodera has been that EVERY decision we make, every part, every step, EVERY nuance DOES make a difference that you can both feel and hear in the final instrument.
Once the cat is out of the bag on the new Standard, remind me to tell you the story about how many hours of A/B testing, discussion and lost sleep went into selecting the parts and electronics for it. Many people from outside our little circle would call the process that we went through flat out insane. We think that it's fun.
Cheers,
J
Time will tell. I'll have an exhaustive analysis in a few weeks