I've use Mothers on my SP101, I think from what Ive read that the products are pretty similar, this one is a white cream looking polish. I got it to a nice polished finish. You will not get rid of the brush marks unless you use different grades of sandpaper but when its polished, the brushmarks are very hard to see unless you are looking for them so its personal preference. In my case, sanding was not worth it, I think it came out well and you really have to look at the brushmarks to notice them. Definitely gives the gun a different look and it worked out well but it is time consuming. I went over each part of the gun about 20 times with an old t-shirt, probably doing somewhere between 1/2 to an 1 squared at a time. With Mothers, you really do not have to use much at all, just dabbing a little bit on the cloth works and it seems like theres a certain amount that works best, its very small. When I got my Mark III Hunter, I only did the flutes, and I used a good amount. After more experience polishing, I was suprised how little you actually need.