I don’t use an AP when tacking, but I also sail on a (big) lake, so no currents to deal with…and no salt water either!A 130 is reasonable. With good technique it can be tacked without undue effort. A 150 not so much. If done perfectly, and you'll need an AP to do it, it's possible. But it goes better with crew. I will argue that the time lost in cranking in the 150 is worse than the time lost with the smaller 130 or maybe even the 100. If you are sailing against current, which is the case on LIS, it's even worse. Nice crisp tacks - that's what I like.
Greg