I agree with Cristina:
Cristina Saur wrote:
For me, however, the job doesn't get easier just because it has a large volume, as coherence and cohesion, etc. are more difficult to monitor. Moreover, with large projects I often find myself having to reject other customers.
I have had both problems. TMs and other aids can't keep track of the document's inner consistency. Only a human brain can do that - and I say that with some knowledge, as I used to be involved in artificial intelligence.
Just last month I lost a chunk of money because I accepted a large job and later had to turn down several smaller jobs that happened to be at really premium rates.