lunsford wont break or bend in any condition of use. i have them on my 3 LST2 for more than 5 years with almost weekly hard bashing. only the plastic end snaps occasionally or wear over. just keep a couple of the plastic end as spares.
Also, I use stock LST alloy shock body(alloy and HD alloy). I used to use tini shaft but they occasionally bend or snap and when it snaps, it always snaps at the same spot.
with some minor modification, i now use integy MSR6 tini shock shaft on my stock alloy/HD shock on my LST2. integy ones are much more thicker shaft compared to stock lst ones. so far it has never breaks nor bend any shock shaft any more. I have used this for more than 2 years with lots of bad landing and big air jumps - no issue.
Note: integy MSR6 tini shock shaft is slightly shorter than stock/tni LST shaft but I don't mind as it does not effect anything significantly. Normal track handling and track jumps is still superb.
just sharing..