Presumably as it takes very fine shavings so reduces the risk of going going through the veneer?
In theory, it should scrape veneer and be indifferent about grain direction. I've not done that kind of thing with them, so the curiosity to me why it doesn't push fibers loose working cross grain.
As far as the depth of shaving, you can vary the size of the burr on the iron once you get the hang of setting them and get a fairly aggressive cut (like a thicker smoother cut) or a very fine cut. The adjustment on the tool allows you to set a coarser (not coarse in edge quality, but large in size) and then control cut depth by adjusting the iron's angle.
it sounds great. When you get the hang of everything and can set it quickly, it's entertaining.
But after that, you start to realize that it lasts less long than a smooth plane (if the burr is good quality, it's surprisingly long) and there's more cut resistance, and getting it to start at the edge of a cut like you can with a plane with a bump - can be a bit of a trick with the big mouth).
Maintaining a clean undamaged burr is kind of similar to keeping a clean undamaged plane iron edge - I won't go into details about rolling burrs and setting them up so they're really high quality, but it's similar in that once the edge is good, it takes no longer to maintain a good one than a bad one.
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all that said, 15 years ago when these things came onto the market (around then) everyone in the US was getting advice from patrick's B&G (it's neatly done, comprehensive and credible). Patrick had two notable comments - he hated stanley #6 planes and he loved the #112 and I think (without going to look) that he may have called it the best thing that ever came out of stanley.
I think the idea for someone new who has trouble with tearout is that the thing will solve all of the problems someone will have - hamler made scraper inserts for planes and gives a great demonstration. But they're kind of like using a car that has both throttle and mix instead of just throttle. You can master them, but in the end, you'll be happy to have a car that has throttle only. If you had an influential car writer talk about the joy of manually controlling the mix in a car and how much better a car performs with it, people would be looking to try it. that kind of thing.
The effect of Patrick's advice back then was that a #6 was cheaper than anything else you could find with "stanley" on it - about half as much as a 5 1/2 and far less than a 7. far far less. That has worn off.
I think the thrill of the scraping plane has probably worn off, too.
Sorry for the long response, just noting that you can really start to control the burr and do all sorts of things. But a thick shaving with a large burr will leave a sort of fuzzy surface is the smashed shaving going around the turn will start to lift ahead of the tip of the burr doing the cutting.