If you go with a cowl hood you are going to have to get used to it while driving whether it is a 2in cowl or a 4in cowl. The visibility is going to be a bit different. Mine is only like a 2 inch cowl and THAT was hard to get used to the first time I drove it (I am about 5'8"). Now...it is like having the stock hood on it again, I am totally used to it.
And I agree about the Cervinis. I have a Cervinis Hood and I haven't had ANY issues with it since I bought it.
Good luck with what ever you go with and make sure to post pics once it's all installed!

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