I'm sorry to hear this sad news. Johnny's posts were always entertaining, and his advice sound. I have speakers he recommended, and have missed reading his posts for several years. He was a good part of the HFC.
Someone has to say it in Johnny's memory: Ringo was a great drummer.
Is this not a better option?
Which isn't to say sustain blocks are not great or better than nearly every other option, but is Mike's design more gooder? It sure looks good.