I have to ask why the C130 visual circuit has to be any tighter than the VC10/TriStar visual circuit? Of course because it's slower and can use larger angles of bank in the circuit, it can fly tighter circuits more comfortably than can a VC10 or TriStar.
Perhaps it's just a question of ''new boys' conforming carefully with existing requirements
The C130 flies a rate one turn (about 22 degs) in the circuit, which gives a downwind spacing of about 1.5nm. We could fly wider circuits by using less bank but to what purpose? Just to be the same as a Tristar/ VC10?
The second quote epitomises your attitude which seems to be that the C130s will conform to the working practices at Brize. This isn't school where the new boys have to learn the ropes from the old lags. This is an opportunity for the Brize squadrons to learn 'best practice' from the C130s, and vice versa too. There are many things we can teach each other - it's not just a matter of the C130s being absorbed.