Hi Nigel
I haven't worried about the warranty as the 2 end brackets cover an area of about 5in X 5in and there are 2 10mm bolts through each
The centre bracket is narrower with one bolt
If tape mastic is used it seals very well and so there will be no need to claim on warranty
I have had the Omnistor 2000 on 2 vans and removed it from the Ace last week prior to changing the van
On both vans there has been no sign of water ingress
The dealer is going to fill the 5 small holes and spray over as part of the trade in good will at no cost as they did last time
The holes could be covered with reflectors etc as an alternative
My dealer have fitted the wind out awning as well
I contacted Bailey a few years ago and they preferred the bolt on type as they weren't happy with the Carvanstor awning rail type pulling on the awning rail
I haven't had any probelms when using the awning rail type myself