Please, before you comment, watch and listen to the whole video. Yes, it is long, but the understanding is in the talk that never stops. Some of you may have seen this already. Some of you may have only watched some portions to form your opinions. This work requires some practice for sure, but you can do it. It's much harder than going to a shop for a base grind, but you may find the end results to glide very well. This method should not raise much if any visual hairs with zero plastic creep. If you do see some micro hair, and you must look over the base in just the right light to see those ( they may appear as dust ) , then some work with some fiber pads should remove those best as possible. It also can mean you have not scraped enough yet and the base plastic is still in the dried out layers. Hairs are not good ever as if you use a overly hot iron as many do, they will further seal the base. Also hairs are generally what makes a base looked grey and burned. Although I don't show this, another final step can be to use the edges of polishing stones wet to further mellow the structure highs if wanted. This is similar to the ski flatting tool and stones that are sold under some name I can't remember now.
Take care and good home tuning times to you all, Jacques