it would be nice to have a little lock icon
right around the club/putter scale area
that when activated, clubs or putter scales can not be changed,
since sometimes these will change suddenly
due to a tiny movement on the mouse roller or something like that.
I always check scales and club selection before I pull the trigger,
but sometimes while dragging the power bar,
the club or scale will change on me in a split second.
when I talked to other players about it, some told me
it happens to them too sometimes. and although it doesn't happen alot,
it can really kill your momentum when it does.
an optional tiny lock icon that only locks/unlocks by double clicking it
would be a blessed addition to prevent that.
(click pics to enlarge)

alternatively you could deactivate the mouse roller function,
whatever's easier...