the servo amplifier miss him terribly, design tubes 2 is good but the common bottleneck clogs too easily. Grinding the leaves 10: 1, where? the leaves emerge barely smaller than when entering and inevitably, it wad!
If it again, I would choose without hesitation the equivalent model from Riobi.
That said, for a little use, in a small garden and for a little bit of days in the year, all for a low budget .... great!