Vertical Form Tutoring

I found this blog when I was researching this topic: http://www.verticaltutoring.org/

Whilst having no principled objections to going vertical, I am a currently a skeptic. I need to understand the benefits to teaching and learning.

I suppose I don't mind whether we are vertical or horizontal, I am most worried about the transitional period.  Tutors, as always, will make the system work to the best of their ability and inclination.

I am concerned that, without significantly more form-time, few benefits to going will emerge.  The most impressive potential benefit that we are likely to be able to gain is mentoring. For this to work we will, as pastoral leaders, need training and we will need to train our teams.

One suggestion to come out of the HW SV process was that we try to get a form fully vertical, asap. I think this is a great idea.  I know a few colleagues who would volunteer! (Kind of!)
If I assess the situation correctly, the benefits accruing, relate to sharing the students' "journey".  If we go forward on this journey in partnership with both students and parents we have a greater chance to achieve change and progress in our students' learning.

Has anyone any other literature that provides a rationale for the VS?