Sweet! You might consider using this command for a more human digestible listing:

    $ stty -a | awk 'BEGIN{RS="[;\n]+ ?"}; /= ..$/'
    intr = ^C
    quit = ^\
    erase = ^?
    kill = ^U
    eof = ^D
    swtch = ^Z
    susp = ^Z
    rprnt = ^R
    werase = ^W
    lnext = ^V
    flush = ^O

How come, actually, that ^R does the history search, even though it has been set to redraw the current line?