2021 - Update 5:
With the H-spine on the horizon, Dublin Bus is trying to get sufficient numbers of buses ready to make the new routes fully operatable by buses in the new livery. Clontarf's SG366 to SG369 were repainted early in the process, Clontarf's GT116 is the first GT so coloured, and EV78, the first EV in the new livery entered service yesterday (22nd May 2021). But the TFI livery buses for the H-spine has also been dependent on transfers of SGs from Harristown, Donnybrook and Summerhill, with non-TFI liveried SGs heading in the opposite direction.
Thus far SG333 (entering service in Clontarf on the 18th May), SG334 (entering service in Clontarf on the 19th May), SG335 (entering service in Clontarf on the 19th May) and SG336 (entered service in Clontarf on the 20th May) have transferred from Summerhill to Clontarf. At least SG38, SG39 and SG41 have transferred from Clontarf to Summerhill, all having being noted in service on Route 120 the past few days.