I think I may have just found the stampers holy grail - the perfect white ink - Memories Unicorn White by Hero Arts. It arrived in a parcel of goodies from Simon Says Stamp yesterday, and I couldn't wait to try it and see if it is up to the hype - I have to say it totally exceeded my expectations. It stays wet for quite a while, so be careful where you put it - although you could heat set it.
Here is my card:
I wasn't sure about the rose in the all for love set when I got it - I bought it for the birds, but on this card, I love it.
Apart from the white ink (as above) the remaining supplies are from Amuse Studio
stamps: all for love, thank you mix
paper: watermelon, sugar
ink: hero arts memories unicorn