For that 60's sound, the bass drum is pretty much wide open no muffling other than maybe a felt strip under the head.....coated ambassador if you want to be authentic. For me, I use a more modern sound when I'm doing blues/R&B gigs.....for those gigs I use Aquarian Performance II coated batter heads on my toms and classic clears on the resos, Superkick II coated on the bass batter with a white regulator with NO hole on the reso.
For a classic sound on my 3-ply Ludwig kit I use Smooth white Heavy Ludwig Weathermaster heads with one felt strip on each head offset to one side, maybe an inch from the left bearing edge, and coated heavy weathermasters on the toms top and bottom. Gives you that 60's eary 70's sound with ease.
My Leedy kit has Fiberskyn 3 ambassador weight heads top and bottom on all the toms and the powerstroke version of the fiberskyn 3 ambassadors on the bass drum for that "vintage calf" big band type sound.
I don't believe in the theory of cutting a hole in the front head of a bass drum, never done it, never will. Most sound guys freak when they see my kits come in for the first time. I even had a 20 minute arguement with a "sound guy" one night about how I HAD to cut a hole in my front head! Lets just say I won, and showed him how to properly mic up a drumkit and make it sound good without cutting holes in heads. He appologized for his ignorance after the first set. Excited
Oh, and BTW, I mostly use the "Glyn Johns" method of micing up a drumkit, live or in the studio, it works best for me. Two overheads and a kick mic is all thats really needed...close micing is overkill for most club gigs, IMO. Some clubs I don't even have to mic up the kit......