Hey guys. I am not dead. I just graduated from law school and hopefully I will now have a life and an income

Which leads me to my question. I am looking to go to a bigger turbo setup. Looking for 350whp with a relatively broad powerband. The engine is a S4 13BT with a mild streetport. The engine will be used in a street/strip/auto-x/track car so I want to avoid too much lag. I have been debating on running a Holset of some sort but I am reading reviews that say they tend to be an on/off switch in a rotary. What is yall's thoughts?