I noticed a couple of minor shipping scratches on my CW IVs too. Unfortunately my speakers are black ash which is definitely not an oil finish and is likely a matte lacquer. I've tried to touch up one or two minor nicks on the front edge banding using a furniture crayon but wiping the excess wax off creates a moderately glossy spot that stands out from the matte finish. Fortunately my nicks are confined to the edge banding so the difference in sheen of the repairs isn't really noticeable, but I wouldn't want to use this method to fix any scratches on the top or sides of the speakers.
While we're griping, I'm not sure who thought it was a good idea to make the CW IV's risers out of MDF. One of mine was slightly crunched upon receipt, but even so, just sliding the speakers across carpet will likely cause the risers to chip and flake at the edges. My fix for this was to build new risers out of solid wood. I haven't installed them yet since I'll have to use the existing risers as templates to drill the mounting holes prior to painting them. Besides, my speakers sit on carpet so the carpet puffs up above the bottom edge of the riser and masks edge damage. However, I would've much preferred the old-style veneer risers that would've held up better.
While we're griping, I'm not sure who thought it was a good idea to make the CW IV's risers out of MDF. One of mine was slightly crunched upon receipt, but even so, just sliding the speakers across carpet will likely cause the risers to chip and flake at the edges. My fix for this was to build new risers out of solid wood. I haven't installed them yet since I'll have to use the existing risers as templates to drill the mounting holes prior to painting them. Besides, my speakers sit on carpet so the carpet puffs up above the bottom edge of the riser and masks edge damage. However, I would've much preferred the old-style veneer risers that would've held up better.