Roper Plate Redux
From what I can tell the original Roper Plates are no longer available.
The last batch that was offered via Scud appear to be sold out.
It looks like you can get a similar item from Gutsibits which seems to be an unauthorized copy (it's not like this was patented) and we might debate the ethicality of that...
https://www.gutsibits.co.uk/pr/TheShop/index.php?f=d&Model=&q=ENA00004
At this point it looks like the Gutsibits version is the only option available
Sport-I's use the 'Broad sump' the same as the V11. The thing is because of the taller gearing in the lower gears in the old five speed box the issue of oil surge and pick-up exposure doesn't seem to trouble them. This isn't to say it couldn't happen, just that I've never heard of a Sport-I running its big ends due to pick up exposure, (Or a Centy or Daytona RS.). That being the case, while fitting one is extra insurance it probably isn't necessary.
The carb Sports still used the old
