steering box firm feel opinions

I have used both the firm feel, and Borgeson.
I like the Firm Feel, because it bolted right in, and works with the stock pump. I have stage 3.
I wish it was a stage 2. I feel the stage 3 is good for autocross, but not that great for daily driving.
Borgeson is more expensive.
I bought the factory style coupler. I had to shim the box for alignment. The small fitting that came with it would cause squealing, so, I exchanged it for the larger. It still shuddered, and squealed. I had to buy their high pressure pump for another $200. Also, I had to get the high pressure hose for a 69 Dart.Finally got it to work
properly.