So easy to ease : I took them to replace my regular Tamiya kind plugs which i had problems with : breaking, short curcuit, and too big.
I'm not a pro at welding but this ones are really easy to weld. Warm up fast, and strong. You cannot make mistake with + and - because it is written on it so no worry about that. And you can make go through much more current without being afraid of melting or anything. I think this is one of the first must have if ou still have Tamiya plugs! And it's also cheap.
Small, reliable and convenient. I've used them almost any application and motor (on road,off road,brushed, brushless). It worked perfectly without overheating even with the strongest motor and hardest drive conditions.