How do you tune your kick drum?

I use a double ply head on the batter side (Evans EQ3 /sometimes an EQ4)/ A standard logo head on the front with a small hole cut at 3 or 9 o’clock; just large enough to get a microphone in the drum. Both heads are tuned very low… but not so loose that they sound “flappy”, like paper. Then I pad it with a large bath towel in the bottom touching both heads (Maybe 2 to 3 inches thick). That’s it. I normally use a Yamaha kick pedal with a the flat plastic side of the beater for a more powerful attack. I’ll take out the padding or add more according to the sound I want.