Anyone familiar with MHZ's Z drive speedmaster ? specifically the new Z Drive Speedmaster S6 -Version II. I believe it replaces your regular drive system. Does the 16% extra rpm they boast about really translate to a higher mph top speed ? Do you think this configuration is practical for a Bonzi 54 fountain with modified Zenoah engine ? If it is really so good then what is the draw back ? the $405.00 price tag plus shipping i guess,
Anyone with actual experience or knowledge with these drives ???

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