I find it works better as a wetting agent a few ml per litre in MS or detergents can help to wet the fibre out so I use less pre-spray. As a stand alone pre-spray i've has patchy results, tried it hot, cold at the recommended dose long dwell, no dwell. I even tried a light mist and going on a bit heavier, got frustrated when I would need to mix something different and re-spray it. Most chemicals are designed to work at particular ratio's so check with the supplier before you do it. I think you should try it as you may get the results you want different strokes and all that.