What type of heads does Mike Portnoy and Thomas Lang use

[B.C.]

Just like the desription says

[Ironcobra]

On which kit?

202020202

[B.C.]

Lang Silver Sonor, and Mike Black new kit, not Bohnam set

[Stevesmithfan]

I'm sure these guys change their head combo's according to the gig and the music being played.
I think,
Thomas Lang:
All Remo Clear Powerstoke 3 on kick, coated Emperor on snare and Clear Emperors on the tom toms. With clear Amb. on bottom.

Mike Portnoy: All Remo,
Clear Powerstoke 3's on kick or Clear Pinstripe, coated reverse Black Dot on snare, clear Pinstripes on tom toms with clear amb. on bottom.

I think they both use ambassador snare side heads, I don't know about the front of kick heads, probably ported.