There was a fair amount of time spent reviewing the plans and researching techniques online. I think the right rear spar will go a bit faster.
I did all the edge finishing on the rea spar components, then I match drilled all the doublers to the rear spar. After I made some modifications (grinding) to the pneumatic squeezer I was able to dimple the appropriate holes on the rear spar and doublers. Then I scuffed and cleaned everything. Then primed all pieces. Tomorrow I will rivet it all together.
Edge finishing the rear spar pieces:
Making the clearance hole for the aileron pushrod in one of the doublers (the Dremel has been indispensable)
Match drilling the inboard spar doublers:
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