Thanks for replies all. Plunge cut I don't think is totally necessary, may make it easier for alignment but I need a good finish on both sides of the cut so as long as lined up ok should run along the cut line straight, may need some practice cuts to get used to positioning.
I'm not good enough with a grinder to have 2 perfect cut edges I'm afraid lol. Thanks for input all.
I'm not good enough with a grinder to have 2 perfect cut edges I'm afraid lol. Thanks for input all.