It's not hard when you get the gist of it, besides Whistling sprinting finger placement just seems a little inconvenient to me even if it's infinite. It's easier to b/r1 since you can do inbetween movements. I'd say it would be preference. And they're all actually the same speeds doing them side by side. But I noticed b/r1 smashing while using all the stamina is a second or two faster.

I've noticed while messing around in the game if you consecutively smash the b and r1 fast you can run without using up the stamina wheel. But if you mess it up it does the annoying throwing animation. And you have to have a weapon or it won't work.

I did a little test sprint from point A to point B with running without b/r1 smashing and one with b/r1 smashing. Saving about 5-6 seconds for a small distance with 5 mess ups. I then did the test sprint again without any mess ups and saved up to 7-8 seconds. Which will probably add up to minutes saved in a run.

But is it viable and is it worth the time it would save?