Some modes (or wave sets) tend to perform better on vertical reflectors. We recommend starting with self-tandem mode using the TTTTT or TTT wave set. However, the catch is that one wave set usually only provides a partial view of a vertical reflector. Additional wave sets, such as the TLT, can help fill in the imaging gaps left by the first mode selected, while pulse-echo wave sets such as TT and TTTT can be used to detect corner trap echoes and diffraction tips.