If B330 B333 works for you 1.0 will almost surely do as well. In previous alphas any stable was always the same version as the last experimental. And I think TFP said somewhere they would not change the method
Just keep in mind that some changes that were made in experimental might not be seen on a save from before those changes or could potentially cause errors of some form. Having a clean stable save would be the best option, but you can continue an older save if you're not having problems if you choose.