What's the benefit in using alcohol?
It's not necessarily for raising the grain.
It removes residual oils and garbola from the stock.
It makes the grain pop better, showing imperfections more readily.
It dries quicker than water.
I have a dedicated pad for its application. It has a small amount of alcohol based stain on it, which is activated when wetted with alcohol. The residual stain is what shows the imperfections. After several applications thruout the build, the grain is raised and removed as part of the build process. The pad can also be used to blend or removed stain as desired during aging.