I've played 2013 a bit and I think it needs 2 house rules but is otherwise fine:
1. MoS are split evenly between bullets in a burst attack. This replaces the default rules whereby every bullet gets the same overall MoS. This tones burst down a tad. Any bullets that can't be allocated a MoS are grazing shots.
2. when wounded body parts are hit again but the wound is ignored because it is lower than the current wound level make a shock roll based on the current wound level. This removes the problem of firing rounds in wounded body parts for no outcome.
Let me know how the combat goes for you, plus if you're using stage 3 combat initiative timing let me know if you went insane