I've seen guys using handheld chop saws for cutting trunking and IMO think its a cowboy way of cutting.
Sure it's a fast way of cutting the stuff 'zing zing zing' job done but its easy to go off line very quickly as your line is obscured by the tools large base. Once the mistake is made, its then down to the engineer to rectify it, usually but just backing up and going back on track. That leaves a bad edge and will usually be flipped around its intended way and have an end caps shoved on the end.
Depending on size, its a hacksaw with a 32tpi blade or a jigsaw, goggles and ear defenders so that I can track the cut closely.
I've also seen guys, one up the steps, the other on the ground cutting lid and passing it up and the other guy putting it on, not a file in sight! Disgusting.
I cannot stand people who take no pride in their work. Nor can I stand people who believe their work is a competition, competitions lead to mistakes which are then hidden.
You know when you have done a good job. As the saying goes, 'measure twice, cut once'.