A question for the percussionists and mallet players out there:
How do you prefer double sticking to be notated in a part - written out as 16th notes, for example
(1), or as an 8th note with a slash
(2)(with or without the abbreviation dots above the note)?

or
Either way, would including
R and
L indicators above the notes for the first few notes be appropriate?

or

Also, I know this works very well on xylophone and marimba, but I was wondering if there's enough bounce-back to do this for vibraphone as well.
Thanks for responses!