I found that sticking out plastic thingy something I worryed about, like sore elbow. If it breaks then what? Also I do not like to carry stuff that far away from the frame. Others may not agree. The Vario rack is just another item to keep under control and I like it better when atatched to the seatpost with a caddy.

Some times we ride to the graveyard and bring flowers to plant there and sometimes also soil- it is nice to use a basket or similar to avoid getting soil in our bags but we use a steel Brompton frame with a plastic softdrink crate ziptied to it for that. We have got four bikes with a Brompton lugageblock.

I own this thingy too, for mounting on the block but I found it is low. Not many bags fit this far down:

https://www.sjscycles.co.uk/luggage/...razed-on-lugs/

I have put a Brompton luggage block on my Dahon Curve for now and want a Caddy on the stem and another clickfix thingy on the seatpost. I always found luggage to be tricky on the Curve.

This thingy is new and cool, could be used on some of the cheaper non Dahon/Tern bikes for light luggage:

Rixen & Kaul, KLICKfix Adaptersysteme Fahrradzubehör, Solingen, Taschen, Körbe, Werkzeug