VS-410PP to Spar

Building the VS on a 9A and have come upon a question. The directions say not to drill the all the holes in the lower VS410PP as they will be drilled for bolts later per dwg 27 or 27A. In looking at that drawing from my preview plans it says there that for the "A" version those holes get AN426AD4-7. Looking at drawing 27 they do not get drilled in the TD version due to the proximity of some holes for that version. Since I know I'm building a 9A, shouldn't I go ahead and dimple the spar and CS the doubler at least, even if I don't put the rivets in? There's no way to dimple the spar and CS the doubler after the rest of it is riveted together.
Thanks

Paul
91300

Paul,

Your thinking is correct. Go ahead and rivet those two now for the 9A.