Nice job. Yours looks better than mine. On an uncowled airplane, I just solder a brass tube onto the high speed needle. I then flatten the tubing with a pliers, grind that part rounded, and use it like that for adjusting with my fingers. On cowled installations, I solder on a brass tube with a short piece of music wire soldered into it crossways. I have a long thin screwdriver that I modified with a tube with a slot on the end, that engages the modified needle valve. I provide a hole in the cowl with a grommet in it for access. Engagement is secure enough that I can insert the screw driver, then start the engine and fine tune the top end.

Yours looks very professional. If you painted it black, one would think it was OEM. Nice post presenting it too. A lot of people are terrified of soldering but they shouldn't be. There are three basic keys:

1. CLEAN PARTS! (sanded, wire brushed, scraped, whatever.)
2. USE FLUX! (Acid or Paste, or ROSIN only for electrical work.)
3. ENOUGH HEAT! (Your heat source should ideally be able to heat the parts enough to melt the solder in around 5 seconds more or less.)

A complete used Homey 25cc will be headed your way this week. Just have to get off my butt and strip it for shipping....

AV8TOR