Misc configuration ?
You didn't say manual or electric actuation, so I'll choose to suggest thoughts regarding 'flap control' schemes. If electric, it would open options for flap positioning controls, either with a glass panel (EFIS) or electronic circuit control such as Vertical Power VPX-Sport or Pro. I use a Sport version for electronic circuit breakers (and system management). This includes wigwag on my landing & taxi lights (LED), and flap positioning and integration with my Dynon HDX EFIS (inluding aural alerts on Flap retraction on 'overspeed').
Position of the flaps electronically is managed with a Ray Allen POS-12 linear position sensor, and configuration of both the VPX and EFIS to establish 'stops' at 13* 26* and 39* (*=degrees) and retraction 'full up' with a single toggle UP movement. This flap control system stills requires all the calibration, alignment and fitting as a manual flap handle but with greater in-flight control. The flap position is also displayed on the Dynon.
Confession: On my first Phase 1 test flight, the flaps would not extend for landing. Anticipated this in planning and made a fine 'no flap' landing. But it took a 2nd flight to repeat this before the 'fault' was resolved. I had extensively tested the flap operation on the ground (at zero speed) but the upper limit of flap extension in the VPX was set for "1 knot IAS"). Changed the limit value to 95 knots and it worked well since, prevents extension accidentally above 95 knots, too.
Flew my transition training with manual flaps and only had two 'notches' of flap position, not three. I find the 13* of the first notch on the VPX to be a valuable addition to drag and slowing down for the pattern. Manual manipulation of the flap handle was very difficult for the 2nd notch.
Some builders have electrical flap operations and hold the DOWN switch while counting to gauge the position. OKAY, but I can't count and fly well. Some have a 'line' painted on the forward area of the flap (hidden under the wing skin) with flap positions in degrees showing as extending. (At night? just count).
PS: The hex tube is great! Good call. Keep your jam nuts tight, check during pre-flights.
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