Yeah bud I use the same wedges as you 50, 54, 58, 64 vokeys, I will either game all of them, and take out my 4 iron, or I will leave my 4 iron and take out either the 54 or the 58 for a round, because I found it easier to manipulate the yardages between those clubs. Imagine that you probably would only hit your that certain wedge twice per round anyway, most holes if you play longer courses you should have longer irons in, and would be using it for par 5's and pitch shots. But I think if you have a Hybrid you can hit easy to replace the 4 iron, those are great loft intervals.
I play the following yardages
46*- 125-35
50*-105-25
54*-90-105
58*-70-90
64*0-65
Hope this helps...