Just finished checking the valve clearances on my 20000 km -05. All front cylinder and rear cylinder inlet were good with zero clearance. The r/h exhaust valve had crept upwards and created a .06 mm clearance on the l/h valve. Adjusted it so both were zero celarance.
It's a good design. Thanks to the hydraulic lifters, you will never have too small clearances. If one valve wears into the seat, it just creates a larger clearance on the adjacent valve.
Quite a lot to remove to get to the valves and not much space for your hands. Still not too bad, though. The valve adjuster screws are 4 mm square and the locking nut is 10 mm, the wrench must be of the deep, i.e. cranked type.

Nope.
Both valves share the same hydraulic lifter. Maximum difference is 0.04 mm, but ideal is zero.
If one valve works its way up the seat it will reduce the valve clearance on that valve. However, the hydraulic lifter compensates for this and contracts slightly. This causes the valve clearance on the other valve to increase. This you remedy by adjusting the ...well, adjuster. If the clearance is on the adjuster valve you screw it in, if it is the other valve, you screw it out. The hydraulic lifter keeps the clearnce to zero on the tightest valve.