This is normal as long as your temperature hasn't changed wildly. You might as well keep the beer in the primary for at least a week, if not two. You can always sanitize a wine thief or turkey baster and check the gravity if you really need to be sure.
Yes, I've used raisins before when making wine and liked the result. They are just dried grapes after all.
Have you ever made wine using invert sugar? If so, how much? I suppose it would be equivalent to using honey...
I've made many fruit wines in the past and got out of winemaking all together to brew beer. It has been a few years, and I've learned a lot about the science of fermented beverages, and I'm ready to give winemaking a go again.
One of the issues I originally developed with making non-grape...