Removed false rib and cleaned off bondo. Removed all blue wing foam, and profiled the rest a bit.
Trial fitted light, and swiftly came to the conclusion that the hatch in the bottom of the strake just won't work. Or it might, and I don't want to do it that way. Figger it will be neater to access from a removable end rib, with the light fixed in a cradle, and use my BMW mirror pointer to fine tune aim with the wing on. The aim will be to have a 3mm jack to aim the light laterally, and a panel switch to aim it up an down.
Cut some paper templates to line the light pocket.
Starting to break in
Profiling the pocket
Light propped in place. Trying to imagine what to do next...