So I have both of these RD in my car right now. There are benefits and downsides to both of them.
The biggest threat in my opinion is instant on Ka.
This is the test thats REALLY leading me towards keeping the STI driver:
look at the instant on KA @ 1/2 for the valentine. It didn't detect ANY of them. While the STI driver had no problem. My friend got a ticket from instant on over the hill with my old 8500 X50. I want to have the best protection. What do you guys think about this?