Using the _key commands

[PhilOfPerth]

Is the following sample using the _KeyClear,  _Limit, and _keyhit functions correctly? (not worried about the rest at this point). It seems to be ok, but I'm not sure about placement of  _limit, and whether it will be called more times than necessary.
_KeyClear
Print "hit a key"
GetAnAction:
_Limit 30 '                                              limit resource usage
k = _KeyHit '                                            get code of key press
Locate 12, 40: Print k; Space$(5) '                      erase previous key code
If k < 1 Then GoTo GetAnAction '                        if there are no keys pressed, have another look - but only do this max 30 times per second
Locate 13, 1: Print Space$(13); '                        erase previous key code announcement
Locate 13, 1
Print "ok, saw"; k '                                    announce key that was recognized
GoTo GetAnAction '                                      look for another key press