1,2 or 3 chainwheels?

[Nigelnaturist]

Triples tend not to change gear as crisply as compacts/doubles, the reason being that the cage on the rear derailler has to be longer (to take up the extra chain length). The longer cage is usually a bit more flexible than a short one, so things get a bit "spongy". How fast the gears change is not entirely important to people like me. If you need some low gearing to get up hills (and I do), get a triple. You may look like a hamster on a wheel, but you may have the personal triumph of not walking.

This had me thinking, many compact set ups especially if looking for a low gear say a 34x30 or 32 starting with an 11th (34x30 is a total of 35, and a 34x32 is 37) in theory need a GS cage.