I don't seem to have any problems with stuttering even when detailed terrain is on, not during fights or close to the ground, unless I am near one of the base/strat/town tiles and the blinking. The stutters aren't even really bad. I can still do base defense etc. Its just the eye wrenching base flash that gets me. Although I will admit, it makes bases easier to see at a distance!
I would really like it to stop though, and as stated before, it only started after this last patch. It did not occur before that.
