I like the term focal points its clear and direct as to what I nweed to do which is focus! When I see the term "Stroke thoughts", at first I couldn't really understand what it meant so I had to reread the post and it still isn't clear. So my vote is for focal point. Also I like the term swing better then zen as well, it describes what I should be doing.
I will also add that there are some terms in the TI Intermeidate six week program that I like as well. For example in the Spear Switch Lesson 4 the Trip Wire and The Race are easy and descriptive terms to use as focal points.
Have a Happy Thanksgiving.