The Vulcan engines were the 201 series or the more powerful 301 series. I seem to remember the hot relighting went out of fashion for multi-jets, on the grounds that it was better to stabilise the aircraft and then analyse the possible reasons for the flame-out. Never had a problem cold relighting the Olympus at high level during airtesting.
The Avons on the Canberra were another matter... and low temp surges during slam accels at high level were exciting to say the least!