Is your pool cue the correct length for you?
Is the weight of your cue correct for you?
Is the shaft diameter correct for your hand size and shape?
Do you have a back up shaft?
Are you using the cue tip (material, diameter, degree of hardness, or shape) best suited for you at your skill level? And do you have extra cue tips?
Do you have and use a special break cue?
Do you have and use a jump cue?
Do you have and use a collapsible rake or a butt extension to reach long shots?
Do you always have with you maintenance & repair tools?
Are your cue(s) and case marked so that you can identify and prove they belong to you?
Do you always have good chalk in your case?
Are you cleaning your pool cue(s) / shafts correctly?
How often do you miscue ? What is the reason?
How often do you re-apply chalk?
How often do you scruff up your cue tip(s)?
How often do you replace your tip(s)?