You are the one to decide and offer.... Is it okay to sell cut comb with a majority of uncapped cells? ...
Customers are the ones to decide and buy OR not buy.
There is no federal law that prohibits this AFAIK (check your local rules).
In general though the customers will decline per the general experience.
The point of cut comb product is its present-ability - so the capped combs certainly win in this department.
All it is to it.