Genuine Ulster(Ulster Rep) bonnet rubber

[Malcolm Parker]

I haven't lost a great deal of sleep over this thread but will add my pennyworth nevertheless.   On my RL saloon I have used one of the rubber sections available with no groove.   Stiff wire staples were made to fit the existing holes in the scuttle flange.  The staples need to be made exactly the right length if they are to sit correctly. Once the staples were fitted and the ends bent over beneath the flange, I used a pair of  smooth grips to squeeze them down tight.  As the rubber is relatively soft, this allows the wire staples to sink into the rubber at the ends where any chafing is likely to occur.
My bonnet does not fit perfectly between the rubber 'bumps' on the scuttle and cowl rubbers, probably as I fit it that way, and the bonnet tends to always move forward due to its tapered shape (on the RL the bonnet is not secured fore and aft). The wire staples on the scuttle flange are visible and do not chafe.
As the thread relates to Ulsters I would be far more concerned about the chafing of the spare wheel cover on the wired edge around the aperture.  That is something I have worried about!