Vortex_Generator, the LNSF , was just that a Light bomber force and was seen as being a nuisance.The Luftwaffe generally left them alone, apart from as I mentioned earlier using specially adapted nightfighters. Towards the end of the war 5 Group was attacking targets of precision
and also the devastating raid on Darmstadt in Sept44 was a 5 Group effort. Splitting the heavies may have been a more effective way of using Harris's resources. There was of course the fierce rivalry between Cochran and Bennett, which saw each commander competing for resources and prestige. Bennett not being too happy when he was forced by Harris to give up 3 squadrons to 5 Group in early 44.