@Martin *******
Yes, if your travel pattern is as you described, you should be able to enter again on a normal 60 days visa exemption without needing a visa in advance. When you arrive, you will be stamped in for 60 days, and you can later apply for a 30 days extension at immigration if you wish. As always, the final decision rests with the IO you stand in front of, but with an eight month gap from your last entry snd no border bounce and no extensive entry history, this is normally straightforward.