Unless you're mounting the tuner right at the feedpoint of each antenna (outside, right next to the antenna) the things you mentioned here are irrelevant. If you're using a length of coax to feed each of these antennas, then you're not matching an antenna, you're matching a system: Which is the antenna fed by a length of coax, and whatever that coax does to change antenna loading. If your antennas are perfect, resistive 50 Ohm loads, then the coax does absolutely nothing to change loading, and you also wouldn't need any kind of tuner. When the antenna's mismatched, the coax will act as a transformer and how it transforms the impedance is based entirely on the load impedance, the coax length, and the operating frequency. It can all be calculated, or measured; but for coax-fed antennas I can't imagine any time you'd want any other kind of balun at the tuner other than a 1:1 current balun; changing to different kinds of baluns won't buy anything.