The H10-30 will do you very well. It has the wire mic arm, which is very robust. The H10-20 has the flexible mic arm, which works, but is less robust, I prefer the arm of the H10-30. Similarly, the H10-60 has a partial flexible arm, same comment. Either mic works fine, and they are very easily replaced with a new one if needed. I've replaced a few over the years, no problem. Buy genuine David Clark mics though, there are aftermarket mics which fit, and I was not as happy with them. Stick with the H10-30, and you won't be unhappy.