Ok this is a pretty simple question really, do you change the fingerings of a scale slightly when you start getting above the 12th fret? My fingers seem to want to, especially when playing fast but I can't help thinking I might be more efficient and thus faster if I stick to the recommended fingerings.

It doesn't matter what fingering you use as long as you're playing the same notes.
Actually called Mark!

Quote by TNfootballfan62
People with a duck for their avatar always give good advice.

...it's a seagull

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i wanna see a clip of a recto buying some groceries.

Mark is essentially correct, in the sense that ultimately fingering doesn't matter that much.

But at risk of disagreeing with the mighty Mark Seagull, I think it is easier for beginners (like me) to play scales consistently. I tend to play solos better if I use the fingering patterns that I've been practicing while playing scales.