Just done my first one. I did buy the Cyclops and the driver (ballast) is pretty slim. I think they claim the newest model is slimmer than the last one. Fitted to my Sport no problem. Never bothered with the instructions
but connected it first to make sure I had the polarity right, pushed the connector and driver back into the cavity (under the reflector) popped it into place and screwed the original cap back on
Ok, that sounded easier than it actually was. Current temp in my garage is -2C so I am debating whether my fingers can stand doing the other one this evening. I do have an incentive as the bike is in for its service tomorrow which means I could ask them to use the machine to aim them correctly.
Had a look out of the window and I won't be trying them out tonight but FWIW - it does look a lot better next to my LED side lights and spots than the halogen.