For reso heads, (short for resonant) clear Remo Ambassadors are the industry standard as are Evans clear G1's, both single ply 10 mil heads. Remo clear Diplomats are single ply 7.5 mil film and will offer shorter sustain. (the thinner the head, the less time it vibrates). Coated Diplomats will give a marginally warmer sound with the shorter sustain than a 10 mil reso head. Longer sustain can be had with Evans GPluses as reso's, a single ply 12 mil head. You may even want to try Evans G2's (a 2 ply head, 14 mils total) on bottom. You would have long sustain, but it may be less ringy, thicker sounding. Or use Evans special resonant heads which have an overtone control ring. Lotsa choices. Id suggest buying a drum dial and learning how to use it, it is an excellent tuning aid. Bring the drum up to tension a little at a time rather than crank a lug 3 turns. I use about 1/6 of a turn per lug only (after finger tight) and the goal is to tighten as gradually and evenly as possible. Start with the suggested tensions and adjust to your sound, tighter or looser. Tighter will carry better unmiced and sound better in the audience than onstage, looser will sound better onstage but dead in the audience unmiced.