100% agree Darryl!

Determine what is your biggest collision threat. If it is large transport aircraft (20 seats +) and biz jets that carry TCAS, install a Trig Mode S.

If it is glider on glider, such as contests or ridges or mountains, install a flarm.

If it is both, install both! There is no one size fits all solution.

For GA, it is a draw which system works best. Personally, I'd rather see them, than rely on them seeing me. So that means PowerFlarm for me.