Hehe, to be honest, I've no idea - I never leave the paint alone long enough to be able to test product durability. My maintenance regimen looks like this:
quarterly - Klasse twins
every 6 weeks - 845
every 3 weeks - OCW
every wash - Reflections spray wax or Nanosliq (depende sa mood ko

)
between washes - OID or ONR QD as needed
I actually think I'm re-applying product sooner than needed, but my car is parked outside when I'm home and is covered with dew every morning, so I err towards caution.