I RO on a frequent basis for the local Speed Steel matches held by two of my clubs. This involves moving between stages. The odd person has not yet bought a holster for the gun they use or it is a gun with a red dot or other feature that makes it hard/nearly impossible to use with a typical holster. So they come to the line with the gun cased and open and prep to shoot from the case. This is often a bit more awkward and quite a lot slower.
If you don't yet take part in any of the low key hand gun competitions in your area I strongly suggest you look into them and give them a go. It's huge fun and a great social day with what I've found to be a great bunch of folks.