Greetings all, I bought my first Toro Z Master (62") and in changing the blades, I am amazed that there is no way to "lock" (hold) the blade while attempting to remove the bolt. What do all of you use for this? A wooden 2x4 (rather clumsy!!) or ??? Also, do any of you spend much time cleaning the underside of the deck? daily? weekly? never? Regards, Duke.