  We present two further classical novae, V906 Car and V5668 Sgr, that show
jets and accretion disc spectral signatures in their H-alpha complexes
throughout the first 1000 days following their eruptions. From extensive
densely time-sampled spectroscopy, we measure the appearance of the first
high-velocity absorption component in V906 Car, and the duration of the
commencement of the main H-alpha emission. We constrain the time taken for
V5668 Sgr to transition to the nebular phase using [N II] 6584\r{A}. We find
these timings to be consistent with the jet and accretion disc model for
explaining optical spectral line profile changes in classical novae, and
discuss the implications of this model for enrichment of the interstellar
medium.
