The problem with the Toaster Tan triples is buying one - I could never get a reply from him, and gave up in the end.
He doesn't always have G/S ones either, and his price plus postage is more than twice SJBMW.
As Rob has said , strength isn't a big factor, - on a good tight, well aligned set of road bike forks the stock plate is strong enough. I fitted a billet triple from Motobins to a 45,000km old R75/7 which had only seem road use, and like Rob found no noticeable difference.
But my G/S had done almost 300,000 Km, a lot of that fully loaded on dirt, and you could actually see the forks twist and flex, and the nut just wouldnt stay tight. When I removed the top plate it was bent , twisted and was fretting round the fork holes. Fork action was horrible, but handling wasn't too bad.
It was replaced with a SJBMW top triple and a Flatracer lower brace added. All that was required to make the indicator brackets work was to turn them upside down and fit them on the opposite side.
Assembly was simple , the billet top triple makes it much easier to align the forks if you are working single handed, and there is no need to tighten everything up to 90 odd foot pounds either.
The result, on this well worn bike , were excellent. The flex was gone, the top nut no longer unscrewed, the fork action improved ,probably due to the better alignment, and the handling improved a little, although not as much as I would have anticipated with the removal of all the flex.
And they look trick too.