Unofficial UK Slalom BBS

I've seen some mention of feature names for The Olympic course on training blogs.
Have all of the features now got recognised names? And can anyone list them?
I have heard 'Piccadilly' for the river wide drop before the first bend and Big Ben?

Piccadilly is the river wide stopper drop as you correctly identified.

Big Ben is the first of the 2 big drops.

Then there's the Oval, named due to the cut out eddies on both sides. This is reminiscent of the current middle section of HPP. The stopper in this section is called Sideshow (the LV equivalent to death/troll hole).

The 2nd big drop is Ben Nevis.

There are other names (jaws/boom) which are mainly used by rafters and plastic boaters, I don't know what they correspond to.

Thank you