Based on all the forums and debates I've read, I think too many
people have gotten their hopes up that HP pulled the 35s from shipment in order to physically inspect each device for display alignment, serial number decal alignment, or to correct alleged functional bugs. This is not practical. At best, I believe HP performed a visual "through the blister pack" inspection to weed out any faceplates that had the "convert liter to liter" errant conversion marking posted elsewhere in this forum and found on only a handful of early units. This would be the cosmetic defect HP spoke of.
The calculators are not worth enough for HP to perform individual inspections of display alignment, etc. If HP was correcting this problem, they would have pulled ALL stock, trashed them, and waited for a new production run from China that fixed these problems. That can't happen in one, two, or three weeks.
Expect HP to continue shipping product with 721x and 725x serial numbers. At some point in the future, I'm sure they'll address the minor manufacturing issues that some people have noticed. Remember the 33s decimal point? They did finally improve this after many complaints but it took at least a year after production started on that model.