I was adding a bit of solder to the tip to help the heat transfer to the wire faster, you do not need to do it, but it does help a good bit. True shoveling is where you put a lot of solder on the tip and apply only that solder to the part. You never touch the part with extra solder from the roll/spool. In the video I used the strand of solder to apply more solder after the part heated up. The time I mentioned being forced to use shoveling, I could only use one hand, there was no way for me to hold the iron and the solder at the same time. In the video, you saw how when I did the actual soldering, I applied solder directly to the part. I touched the iron tip to the bottom of the wire, then when it got hot, I applied solder to the top of the wire, and not the part of the wire where the tip touched or just to the tip itself. That is what it means when it says apply solder to the part and not the tip.

RA flux is more chemically active, meaning it is more corrosive and conductive than RMA, increasing the risk of problems from improper cleaning. If you use it, just clean really well.