I've been continually testing some Muzzy 100's with Blazers and they are dead on, I had to make no adjustments whatsoever. The Thunderheads should do the same out of a well tuned bow.
Blazers and slick tricks here. I am shooting my slicks just like the target tips...no problems!
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Remington Model 11-87 Premier 12 Gauge
Remington Model 870 SPS-T Camo Thumbhole 12 Gauge
Ruger M77 Mark II .270 w/ Nikon 3-9x40 Buckmasters
Thunderhead 100s was the first broadhead that I tried with the Blazers. They flew like darts. Also tested 1 1/2" Rocky Ultra 125s, Wensel Woodsman 125s and 150s, all with excellent results. Those Blazers are the ticket.