Use of a high resolution probe (7-15MHZ) is essential.
Careful scanning technique to avoid anisotropy (and possible misdiagnosis).
Beam steering or compounding can help to overcome anisotropy in linear structures such as tendons.
Good colour / power / Doppler capabilities when assessing vessels or vascularity of a structure.
Be prepared to change frequency output of probe (or probes) to adequately assess both superficial and deeper structures.