Drooped ailerons do not normally provide DLC per se; spoilers are the usual control surface employed. Load alleviation is more of a long-term control strategy rather than a short-term control function.
The UK researched DLC in the late 70’s using a BAC 1-11 (RAE, XX105). In pitch, the control column was connected to the spoilers (FBW) as well as the elevator. In balanced flight, the spoilers were propositioned approx 10 deg out. Back stick moved the spoilers in, thus increasing lift; forward stick moved the spoilers out, decreasing lift. There was a spoiler - elevator interconnect to negate pitching moment for small stick movements, thus when on the glide-slope the aircraft could be moved up and down without a major pitch change.
Several tests evaluated the advantages of DLC during the landing flare from steep approaches (6 deg). The change in 1-11 flare performance was remarkable; normally from a 6 deg approach the flare was commenced at 100 ft, but with DLC this could be as low as 35 ft. The aim was to improve landing performance by reducing the distance travelled in the flare; this was a success. Unfortunately when landing with spoilers out the approach speed had to be increased to maintain the necessary stall margin; this offset any gain in landing performance.