Thank you all for those very kind words. While waiting for the fuselage's clear coats to fully cure before applying the HGW nail-head decals, I started work on the Daimler-Mercedes D.IIIa engine.
It's received the Taurus full meal deal - timing gear & valve springs, spark plugs, and priming cups - which I just finished installing tonight. The valve handles for the priming cups will be added after painting to prevent breakage. The white blob is my custom installation tool for the priming cups - poster putty. Trying to hold them with tweezers is impossible due to their shape. Attempting to do so with the first one resulted in it pinging off into oblivion. Good thing Taurus included a spare.
Each cup unit was slightly embedded in the narrow end of the putty blob which held it just enough to allow it to be placed in the hole drilled in the cylinder casing.
Cheers,
Eric