A lot of the Topps Chrome cards will have one or two small bubbles on the surface. Basically a production defect rather than damage.

How do you rate the cards with a bubble?

If someone sold you a $20 - $30 card and it arrived with a bubble would you consider it acceptable?

If a card was a 10 in every other way how much would a surface bubble devalue it?

Just curiuos, I usually send them back for replacement but Topps seems to think they are normal.