I just noticed you already have the MAX Meter 75 yard wedge. Do you also have the MAX Meter 100 yard wedge in your inventory? I'd save the Callaway 52° wedge for par 3 courses and CTTH. I think a 100/75/50 configuration will do you more good than having the 52° wedge in your bag. If you have the MAX Meter 100 yard wedge, I'd say get the 75 yard L96 Callaway. If you don't have the MAX Meter 100 yard, I'd say get the 100 yard L95 Callaway. If you have the credits, I'd say get the Callaway 100 yard and 75 yard wedges, and use those along with your MAX Meter 50 yard wedge. That's what I use.
I'm also interested in hearing what advice other, more experienced, players have to offer.