Hola spoilerons -
xxx
Do not know about the LR-60 - The closest (however different) was the 55.
In many planes, 727ADV, old DC8, 747 Classic, autospoilers OFF is our trick.
Maybe works with the LR-60 as well, I told our friend dboy to try that.
Might work, might not - Trial and error...
xxx
Brgds -
Happy contrails
PS -
Thinking about it I remember the pronounced "autoflare" resulting w/ thrust going to idle.
Because the engnes are located high. Very little elevator "flare" back pressure required.