Open up a well-designed high cash value policy and you'll often find something that surprises people: term insurance, sitting right inside the whole life contract. It's called a blended design, and the term rider isn't filler. It's load-bearing.
Here's the problem it solves. The MEC rules limit how much money you can put into a policy relative to its death benefit. Fund too much against too little coverage and the IRS reclassifies the contract, stripping the tax treatment you were building around. So a design that wants maximum cash value needs enough death benefit to justify the funding. But permanent death benefit is the expensive kind, and buying more of it drags down early cash value, the very thing we're designing for.
The term rider threads the needle. Term coverage is cheap per dollar of death benefit. Bolting a term rider onto a modest whole life base inflates the total death benefit enough to make room for heavy PUA funding under the MEC line, at a fraction of what the same room would cost in permanent coverage. As the years pass and the policy's own cash value and paid-up additions grow their own death benefit, the term rider can shrink or fall away. Scaffolding, in the truest sense. Necessary during construction, gone from the finished building.
A blend can lean too hard on the term side. Term rider charges rise with age or expire on a schedule, and a design that depends on holding a large rider for decades gets expensive in ways the first-year numbers don't show. When you're reviewing a proposal, ask what the blend ratio is, when the rider steps down, and what happens to the policy's math if it stays. The same funding questions from what makes a policy grow apply doubly here.
Design decisions like the blend ratio belong in the conversation before you sign, alongside the three decisions that matter most. A term rider used well is a big part of why a good design performs. Used carelessly, the rider charges climb with age for years before anyone notices what the blend has cost.