When I had my last Morgan which had a luggage rack, I agonised for two years whether to get the shiny umbrella holder after seeing one on the back of a SwanMog 4 Seater
I didn’t know what it was when I first saw it but I knew I liked it so I had to ask the owner
I’ve seen both the Williams one and the MMC one and the Williams one is slightly better made in my opinion - maybe a higher grade of Stainless or better polished but feels to be a bit heavier
The MMC one has a bit of detail with regard to the canister opening end and is cheaper
I never got around to getting one, preferring instead to carrying a couple of very neat folding automatic umbrellas which collapse down to something no bigger than a pencil case in the cockpit
Usually stuffed in the side door pocket or in the glove box
The reason being that if I ever got caught in a heavy downpour with the hood down I’ve got an emergency rain relief readily to hand
It came in very handy once earlier this year when I got caught at some traffic lights in the rain
I had the tonneau cover on and the passenger side zipped up and was fine moving but not so so fine at the lights
You can’t get to an umbrella in a tube hanging off the back of the Mog in that circumstance but I do agree for touring it’s a really great idea
I wouldn’t be too worried about having the umbrella nicked on the Williams one as it’s pretty ambiguous what it is and nobody can readily see how it opens
And if you put a cheap golfing type umbrella in it, it’s not the end of the world but I doubt it’s going to be an issue