If you want to try the laser light vs pointer, for $5 Harbour Freight has a small light that can attach by sticky back, or screws to your machine/trolley - if the light tip is too big, do as previously suggested to tape over it and put a pinpoint hole in it. For $5 you can try without a huge investment. Might be cheaper to buy another light vs cost of replacing the batteries when it wears out. I was still using my first one when I sold the set up, including machine.(The light is meant to be a guide for a circular saw when following a line on a piece of wood)
The light is much easier to position vs the pointer