We did the sensory profiling and DS was flagged up with 'definite differences' in several areas with the conclusion that he has a Sensory Processing Disorder as well as his now diagnosed Asperger's. He also has low muscle tone and hypermobility.
We are seeing the head of paediatric OT locally but I think experience and knowledge of these type of problems varies widely. She is very supportive but we have not had any programme to 'de-sensitise'. In fact, we saw BIBIC and she was very sniffy about their programme which was, admittedly, very generic.
However, she says she is not trained to do the brushing technique (it has a special name - Wahlberg or soemthing like that) and so can't teach it.
She has suggested about managing things e.g. if he's chewing on cushions, give him something else to chew on or if he's particularly floppy one day, do thinks to perk up the muscle tone. However, we've had no core stability exercises and I'm not sure there are any real solutions on offer.
All this is to say, I'm thinking about a private referral to GOSH as I'm not convinced I'm speaking to an expert - as nice as she is.
I'm not sure whether the others have seen OTs privately or on the NHS but my advice would be if you go speak to the OT and aren't satisfied about their expertise, go elsewhere