I peaked at 32 but found out apr adjusted my wastgate high
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This was a concern of mine. I read of too many guys popping engines after slapping on a K04 and getting spikes to 30. The course I went to avoid this was I picked up a used Golf R turbo and turned the WG actuator down 6 turns, got tuned, and adjusted 1/2 turn at a time and logged until I liked the logs. Fortunately it only took 2 adjustments to arrive at a good balance of top-end boost meeting requested and limited boost spike, about 5 turns out from original location. However, regardless of the WGA setting, I can bring about a spike to about 25psi when stabbing the throttle in gear between 3000 and 4000rpm.
And yes, I would be happy to make due with less boost, especially in the midrange. I know that probably sounds crazy to many, but the perfect K04 tune for me would boost 17-18psi flat from 3000 to redline. I've reached out to APR to see if such a tune exists. I'm after linear torque curve, powerful top end and less torque steer for mountain roads and occasional track days. The added benefit would be that my stock rods will stay straight and connected to their corresponding pistons for many miles to come.