Last play, 6k to 1k, convert to jpeg at "highest quality" - gives image at 851kb on HD
and is also at 851kb when downloaded from ST.
Looking at the images side by side, there is clearly much more detail in the original raw file and the rescaled images do start to show the pixelation at high zooms (no surprises there then!) but I can't see any difference between the 852kb "highest quality jpeg" and the 395kb image with a small amount of jpeg compression.
As for "conclusions" @xelas, definitely re-size/sample first then apply a small amount of jpeg compression before uploading and reversing a previous comment of mine @Game Warden, if server space really isn't an issue then perhaps you could up the max size of images to eg 2k on the longest edge - but I don't think it's an imperative.
Now I really must stop playing, get on with my TR & start uploading some different images!
Edited by AfricIan, 24 October 2015 - 11:38 AM.