I carry the exact same 4 wedge combination and depending on the distance of the course will pull my 52 and put in my 3-iron.  I find that short courses tend to leave me at the 100-120-yard range often and that fits perfect for my 52.  But all that said, I love my SM5's.

I have a PW, AW (50), Vokey SM5 54, and 58. I've found that over time that loft spacing is best for my game. I haven't found that I need anything higher than 58 for how I play. 3 wedges past your PW is really all you need, I barely use my 50 anyway and have considered getting rid of it.

B

Four. cally PW 46, cally x forged 52, 56, 60

I own 

PW = 45 degrees

GW = 52*-8

SW = 56*-14

LW = 58*-10

LW = 60*-9

LW = 64*-8

I mix and match to the conditions always carrying minimum of 3 and always 45-52.. then usually 58 and 60 or 56-60.. My 64* and I do not get along currently so she is going to divorce court

I currently carry 4. My PW is an AP2 46*. My other three wedges are all SM4: 50*, 54*, 60*. I need to replace my 60* due to wear and will likely replace it with a 58* SM5. The one thing I don't get with most new stronger lofted irons is that they just create more gaps in your shorter irons. I simply equate this to the male ego. I'm not the longest hitter of the ball and often play with golfers that blow it by me all day off the tee but at the end of the round I've often scored lower. Love Titleist and Vokey wedges!!