Malmsteen play it this way :
e--------------------12--17--12-----------------------
b----------------13---------------13------------------
g------------14----------------------14--------------
D-----10-14------------------------------14-10---------
A-12---------------------------------------------------12--
E---------------------------------------------------
Another way for playing it is (same notes too) :
e---------------------12--17--12-----------------------
b-----------------13----------------13------------------
g-------------14------------------------14--------------
D---------14--------------------------------14----------
A-----15-------------------------------------------15------
E-17-----------------------------------------------------17-
Fingering goews as follows: 4,2,1,3,2,1,4,1,2,3,1,2,4
I can play them all , but I prefer the Becker's way it cuz it incorporates less hands movement which make it perfect (and a little faster too) for most positions on the neck (even from the 19th postion to the 24th fret, like in serrana).
A more effective fingering would be the standard barre shape for an A min chord:
e-------------------------17-----------------------
b---------------------17----------17------------------
g-----------------17------------------17--------------
D------------19---------------------------19--------
A--------19-----------------------------------19------
E-17-20--------------------------------------------20--17-
You can also add the C note on the 20th fret high e-string , which gives more notes selectability with out even moving your hand.
The problem here is that you won't be able to play the Emin in serrana cuz you'll need a 27 frets guitar for that .
That min arp you posted is one of my fav too , Steve Vai used it at the begining of the Crossroads "Eugene Trick bag" .
I play it slightly different with the same notes ... Here's how I like to do it :
e------------------5-8-12-8-------------------
b---------------5-------------10------------------
g------------5--------------------9---------------
D---------7---------------------------10----------
A------7----------------------------------12--
E-5-8-----------------------------------------12-8-5-
my fingering is : 1,4,3,3,1,1,1,4-4,1,2,1,2,4,4,1-1 .
The 1-1 and 4-4 refers to slide (picked or legato , as you like)... You can also make the sound like it's not a slide if you want, I'm sur you know how.
For the maj arp I posted , yeah I use barre (2nd finger) for it ... It's hard to imagine using single fingers at high positions on the neck , and it even feels awkward to do so in lower positions .
P.S:
====
I didn't understand the way you typed your fingering , anyway I typed out mine for every single note both fwd and backwds.
If I'd play that min arp your way , I'd do it like this :
1,(4),1,4,2,1,2,1,4,1,2,1,2,4,1,(4),1
The finger between the () can be replaced by 2nd or 3rd , or even start with the 2nd at the 5th fret and slide to the 8th.