Starter turns over slowly when hot

[san rensho]

First thing in the morning, the starter turns over perfectly, but once the car is hot, the starter initially turns very slowly for a moment, almost like its not going to turn at all. and then goes at normal speed. I was reading in the Rennlist 996 forum that the problem in 911s is a cable going to the starter that doesn't provide enough juice and needs to be replaced according to a TSB. Battery is good, dead cold voltage after sitting overnight is 12.55v

Does the Boxster have the same problem?