Minderwiz
Just a quick comment on the 'three year' phase. One of the problems is that Saturn returns do not occur in isolation - there are other things going on.
So around 24 you get a second Jupiter return. at 25 and a half, the Saturn sextile to natal saturn, at 27 to 28 Uranus trine to natal Uranus, at about the same time a progressed lunar return, at 28 Neptune sextile to Natal Neptune, and at 29 and a half the Saturn return itself - the years from 27 to 30 may be chaotic but this is not simply the Saturn return.
So around 24 you get a second Jupiter return. at 25 and a half, the Saturn sextile to natal saturn, at 27 to 28 Uranus trine to natal Uranus, at about the same time a progressed lunar return, at 28 Neptune sextile to Natal Neptune, and at 29 and a half the Saturn return itself - the years from 27 to 30 may be chaotic but this is not simply the Saturn return.