Well, in practice (on both wood and synthetic) I would probably throw a few directly up 10-12 (with some surface obv), a few at around 15-17 at the arrows, and get one at around 20 in if I could. Keep the breakpoint a bit tighter.....low volume = the heads can blow up and give you some instant check, so be aware (this is enhanced more on wood).
I would try and work a couple balls in in practice too.....just trying to get a look. That would be as much of a "game plan" as I would go for as my ball will tell me what is going on.