Dude your suggested setup for shooting lines in Reds is a recipe for disaster. If SRT in 2nd growth Reds is what you seek an APTA and a pair of binoculars is a must. It will take hours and hours of practice with an APTA, a throw line, and a 14-16 oz throw ball before you will be able to consistently hit your mark, and hours after that before you will come to understand when you can, and more importantly when you can't employ SRT on a given climb... If you get ahead of yourself you are setting yourself op for serious injury or worse. 2nd growth Reds are a completely different animal than a Fir, Pine, or even an old growth Red, and as such take a very specific skillset to work with in a safe and efficient manner.
I have been wreaking Reds for over 40 yrs and only started using an SRT setup in the last 2-3 yrs. It can be a game changer for sure, but you MUST understand that SRT cannot and should not be used in Reds 100% of the time....
If you don't already know how to properly roll a flip-line I would highly recommend that you do so. Once you can do this efficiently you can employ the technique along with a rope walker setup to ascent SRT without worrying about a fall should your TIP fail....