I'd have to disagree. The advantage of close fitting webs between the spars is precisely that they DO NOT rely on adhesives for the shear strength. The adhesive just stops the webs from moving around, the strength is obtained because the webs are a close fit between the spars.

Don't get me wrong I sometimes, perhaps even most frequently, use the easier to build C section but most glues are nowhere near as strong in shear as you might think. Fortunately we always overbuild anyway. Do you know, some people even take the shear webs all the way out to the wingtips despite there being almost no load out there ?

Steve