Sounds interesting. I heard that also. So, when I brew my saison, I also use the white labs 644 sac yeast, along with the wlp585 yeast, to give it that barrel twang. I also use pilsner malt as my base malt. So Golden promise is a nice substitute. (BTW, my saison is on its way to NHC finals.)
I believe you have a potentially awesome, winning beer.
Please keep us up to date. Thanks.