Why the reversal cost matters more in Kannapolis
The mill-village streets are tight, small lots, houses close to the pavement and to each other, and limited room to set a ladder at the correct angle on the side elevations. Working there is slower and it is worth saying so rather than pricing it as if it were open subdivision. The newer half is straightforward two-storey work with proper drives. The county line runs through parts of the town, which complicates addresses more than it complicates ladders.
That is worth reading before deciding between the two products people call leaf guard, because the harder a roof is to reach, the more expensive it is to change your mind about what is on it.
A cover that clips over your existing gutter is reversible: removal is $1.50 to $3 a foot and the gutter underneath is untouched. A one-piece system, where the hood and the gutter are a single extruded unit, is not. Taking the hood off means taking the gutter off, because they are the same object, so undoing it is a full replacement, $2 to $4 a foot to remove, then $8 to $17 a foot for a new run. On a 150-foot house that is roughly $1,500 to $3,150 to get back to a conventional gutter, before the access surcharge that Kannapolis height adds to both halves.
That asymmetry is essentially never mentioned at the point of sale, and it is the single most important fact about this category. So: ask any company quoting a one-piece system what removal would cost, and note whether the answer comes readily.
On the product itself, reverse-curve uses surface tension to carry water around a curved lip into a narrow slot. It works, up to a flow rate. Charlotte peaks at 7.27 inches of rain an hour over a five-minute burst, and past the point where surface tension holds, water leaves the nose in a straight line and goes over the slot entirely. Under willow oak and pine we recommend stainless micro-mesh at $10 to $18 a foot instead: finer aperture, roughly half the price, and it unclips.

What Kannapolis itself changes
What drops on these roofs
The mill village has the mature street trees of a neighbourhood approaching a century old, planted close to the houses on small lots, so the canopy sits almost directly on the roofs. The post-2000 redevelopment is open and lightly planted. It is one of the sharpest contrasts in the service area, and it means two Kannapolis addresses can genuinely need different cleaning frequencies rather than differing by a matter of preference.
The housing in Kannapolis
Kannapolis has a barbell distribution rather than a normal one: 29.7% of its housing predates 1960, in the former Cannon Mills village, and 40.7% was built in 2000 or later, in the redevelopment that followed. The middle is thin. For gutters this is not just an age difference, it is a geometry difference. Mill-village houses were built small and close together with shallow, narrow eaves, and the modern stock has the deep overhangs and large roof planes of contemporary building. The same profile does not sit well on both.