Lacerations

I was trying to do Hidemasa Hook when I landed a Red Triangle! Another time I tried Hidemasa Hook and ended up with a knot around my finger (I think I just missed a Brent Stole really bad). Is the Red Triangle a real trick or did I just make it up? I am also having trouble with Hidemasa Hook, does anyone have any advice to get both strings to hit my finger?
Thanks!

No one can give me some advice.

Yes, that is a real trick. I don’t personally know how to do it but I have seen it done before. However, I’m sure it isn’t too easy to do at first though so good job.