Engl Hardtailer Trem Block System

That product is great.
I had some doubts before ordering.

I thought It could negatively impact the sound in a blocked position.
As it turns out, the only slight problem is that if you bend too hard, there will be a noticeable sound (tremolo will clash against the blocker when you release a bend, when you bend, tension will increase and Floyd will elevate against the blocker).
However, you can solve this problem by slightly readjusting the blocker once in a while. I have noticed this problem ONLY when changing the tuning of my guitar without readjusting the blocker.

The benefit of blocking tremolo and dropping my guitar with a d-tuna-like product outweighs my cons.

Hardtailer can sit in the way of springs, so be aware of that too.