Yep, it's best for thin material or near edges. With the pulse set as low as possible, it was still too fast for me to get a rhythm of heating and dipping the filler. At higher frequencies, it seems to make the pedal control more forgiving. When you stomp on it, the heat sinks in and backing off to just the perfect heat is not as touchy when pulse is turned off. It took a good bit of fiddling around to make that little discovery but, I ended-up using that all weekend.

Quote Originally Posted by Rambozo View Post
Thin materials, and welding near an edge are good places for high pulse frequencies. It lets you use a higher current to get good wetting and burn in, but still keep control of the heat put into the part.