I'll be watching this thread with interest. I've tried blueberry from WSP and Bert's. Both turn sour on my skin. This is not an uncommon problem for me, but I'd love to find a blueberry that I can use.
I LOVE the blueberry from cierracandles.com but it seized when I made it. Someone had reviewed it as a popular soap (cp) so I bought it. I might try it again in lower temps.
I can't help with the peach but I agree completely with soapbuddy about SweetCakes blueberry. It is the best out there! I've used it for many years. I've tried others and basically they all sucked. I do use it at the rate of 1 oz. ppo since my soap goes through gel and it's just not strong enough for me at .7 ppo.