I did a quick count of my stock of LP4-3s and found that I came up short by about 4 for this task. Concerned that this may be a problem, a couple of months ago I had purchased 100 Cherry MSP 43s which are a stronger rivet. I sent a quick email to Vans to check that it was ok to use them. They gave me the confirmation overnight, so I added the front spars using these. They actually are an easier pull than the LP4-3s. at 0.17 each they are not cheap though.
