There isn't one pat answer for all
drummers. Cutting a 4" hole in your resonator head WILL effect the sound. Many drummers like it. Placement of the hole is critical because that will also effect the sound. The closer you place the hole towards the center the more high end attack you get from the beater and less resonance. I usually place the sound hole at about 4:00 on the resonator head a couple of inches in, but I really prefer the warmer resonant tone of a solid resonator. It's a compromise that I've made to keep sound and recording engineers happy. They want the deader sound of an electric kick pad, I want the resonant sound of the drum chamber. A 4" hole gives a little of both. When I'm recording myself, I don't place the kick mic inside the drum anyway but outside the resonator head about 2" off the head, just above the sound hole with the diaphram of the mic just pointing down a bit. This gives me a warmer sound to the kick but with plenty of attack. You may not like that sound at all, you have to experiment so that you can hone the exact voice that you want to hear from your kit. Also, different rooms=different placement.There just isn't a "one size fits all" answer.