This hybrid comes in many forms, including violin cornered or gamba outlines, oil or lacquer varnish, and fully carved vs carved with thin protective veneer tops.
You can choose your configuration based on your goals with the instrument. For pros and advanced students, the oil varnished fully carved top would fit the bill. If you are a school district that has enjoyed the durability of plywood basses and is looking for an upgrade in tone, a CV top in the gamba outline would give you both. For your shop's rental pool, a CV top and lacquer varnish would hold up for years with minimum reconditioning at the end of each season.
Available in 3/4, 1/2 and 1/4 sizes.