Welcome to the club Jake yes these golden lasers are something else, I have a CNI 589 peaking at 125mW out and I love it's beautiful golden color, here's a shot with it and a couple other colors. I took this shot up on the mountain top in the snow and a cloud had just enveloped us so it did some pretty cool stuff to the picture. I like this picture so much I named it, it's called "Outward Bound"
Jake you may want to try some regular alkaline batteries as they're 1.5v when full vs. 1.2-1.3v. With my pens from IQS I got a boost of a few mw on the 405 and abot 10 on the 532 but decided on rechargeables for the convenience factor. Oh I'm not sure if 593.5 is pulsed like 589 is but you can easily tell buy moving it rapidly and see if the dot makes a solid line or if it's dashed. It looks kinda cool if you swirl it around and make designs on the wall.