Owning your own home

we’ve had a few estate agents round with many different strategies:

• Take current listing down imminently (next weekend) - they start contacting their user base from when our contract expires (4th jan) for 10 days before they list it on rightmove etc - relist it back at 350k (was 350k, we dropped to 340k), agent is a big london wide agent but no immediately local office
  
• Launch on the 4th at OIEO 325k in the hope you can drive price up to 335/340, agent has strong local present but isnt a big name
  
• Launch on the 4th at 340k ideally having our advert being down for at least a week beforehand, agent has good local presence and larger london presence
  
  

Heard lots of conflicting info, our current agent obviously wants to keep the listing online for the boxing day-new year period, but two of the new companies said that the enquiries from those days are mostly ‘bored’ people not serious searchers, but then they have incentive for that period to have no eyes on the flat.

I can see the benefit of having a gap between the listings, but I don’t know when the ‘right’ time is.