I just discovered that Mizuno is discontinuing the Wave Alchemy 7s AND Asics is discontinuing the G2120s. Sad day in the life of my feet! I've been wearing the Mizunos for about a month and a half now, and really like them... I was planning to use the 2120s for my backup shoe -- and maybe even go back to them with an insert to fix my blister problem.
Now it looks as if I need to find new shoes altogether. Sad day.