I thought it might help to see a little background to the Stanley development of their scrub plane and so we put together a short video to see the comparison. I am using adapted versions of the old and new roughing planes to show that they both work very well and cost almost nothing as secondhand tools for prepping your wood.
You can dedicate a rough old Stanley or an old wooden block plane of you have one and you will find them very handy for taking off the highs and levelling your work in readiness for finer plane work. Here is the link .
You can of course also buy a modern version of the scrub plane too or a secondhand one.