You are really lucky to be tolerating 40 mg ALA after 6 months! After two years I've still never been above 12mg ALA and 25mg DMSA, yet have gotten really nice gains. I could almost certainly tolerate higher doses but I want to get on with my life. I'm not as productive when on round with max doses of LA.
Early gains in energy are common. However many report some worsening of symptoms in the roughly 6-9 mo period. I would not expect that to be so bad for you since you are using such high doses of LA.
Mg is one of the essential supplements while using Cutler's system. Bs are in the next group of valuable supplements.
I'd be really grateful for an update from you in a couple of months. I won't be surprised if you have a really mild "dump" period.