Hi joey
I was under the impression from what i have read that syntocinon is contraindicated for VBAC due to the risk of uterine hyperstimulation that can increase teh risk of rupture.
if you are not comfortable with synto being used, then you can decline it
the best way to start a VBAC is a with spontaneous labour, and no augmentation, so your body can go at its own pace.
i always recommend women to do their own research and reading around VBAC, so they feel confident and know what sort of care they want in labour
if baby is happy and you are happy, and labour is not progressing at the 'average' of 1 cm per hour, you can decline any augmentation. some women take ages to get going,then go from 3 cm to fully in a couple of hours, some go really quickly to 8 or 9, then ages to get to 10cm
if baby and you are tolerating labour well, and on distress, then labour, should, IMO be allowed to continue at its own pace
if you do not wish to be induced or augmented in labour you can make an informed decision to decline it
you are not really overdue until 42 + weeks. you can ask for expectant management instead of induction
you can proceed to elective c.s at 42 weeks if no sign of baby and you do not wish to be induced due to the risks
www.aims.org.uk is a good resource as i said. and there are lots of VBAC sites out there
search on here for posts by Victoriansqualor and Klaw about VBAC
and good luck !