Bernhard's Speedy Scales problem - turnaround at top of scale

[bardolph]

One bottleneck I seem to have in scales is the turnaround at the top, at least with certain scales/passages/fingerings. For example, Bernhard's speedy alternative fingering for G in the left hand: 321 321 4321 321 43 - at the top of this 2 octave scale one plays 434 (f# g f#) and that slows me down a lot. Is the answer just time and practice?

[allchopin]

At the top of the scale, why don't you just use 21?  The 43 is just for if you continue with another octave.

[bardolph]

I thought using 21 at the top would be "cheating"   But I understand, it depends on the situation. I suppose one shouldn't worry obsessively over the fact that 43 never seems quite as fast as 21 or 23...

[jlh]

Why would you reach the 4 to play the F# in the left hand?  How is that faster? For that matter, how is changing hand positions 2 times instead of the traditional 1 time for the same scale any faster? 

[bardolph]

Here's Bernhard's discussion on this peculiar-seeming fingering:
https://pianoforum.net/smf/index.php/topic,2619.msg22756.html#msg22756

Why would you reach the 4 to play the F# in the left hand?  How is that faster? For that matter, how is changing hand positions 2 times instead of the traditional 1 time for the same scale any faster? 

[jlh]

Has anyone actually played scales extensively using this fingering?  The problem is that people who are more used to the traditional fingerings will generally revert to what they've grown accustomed to when in tense situations like performing (and then since they've only been practicing scales the other way, it could create problems), so they will continue to practice what they know.  The other problem is that not too many teachers I know will change the way they teach their students if they won't do it themselves.  So it seems there is a "catch 22" in this fingering issue, sorry to say.   

Sounds good in theory, however...