Well I just did some informal tests (don't have enough time for formal right now). Flash Scorpio 100R2F has no problem KOing it, however, if MF-Scythe Kronos 85RS gets a wall save Flash usually gets KOed.
A few interesting notes:
Flash couldn't KO it straight out of the center, it had to tap it out of the center first.
Scythe didnt scrape on its own.
A few battles Flash actually OSed Scythe because it knocked it around enough that Scythe started scraping
I agree with you Ingulit, never had an issue with Flash scraping once.
I will try to do some formal tests of this done tonight and post them tomorrow.
Edit: I tried a few more quick battles and had a bad launch with Flash that resulted in a tornado stall, I decide to let it go and see what would happen. When it finally got to the middle and made contact with Scythe, after a few hits Scythe toppled, scraped, and died. So I tried it again, this time tornado stalling on purpose, and had the same result.
Double Edit:
MF-Scythe (Hasbro) Kronos 85RS vs. Flash Scorpio 100R2F
Standard Procedure
Straight Shot Scythe
Banked/Sliding shot Flash
1)FS - KO
2)FS - KO
3)FS - OS
4)SK - KO
5)FS - OS
6)FS - KO
7)FS - OS
8)FS - KO
9)FS - OS
10)FS - KO
11)FS - KO
Tie
12)FS - OS
13)SK - OS
14)FS - KO
15)SK - OS
16)FS - OS
17)SK - OS (Holy walls saves Batman)
18)FS - OS
19)FS - OS
20)FS - KO
SK - 4 wins (3 OS, 1 KO)
FS - 16 wins (8 OS, 8 KO)
1 Tie that was redone
Scythe win % = 20%
Round 17 was that kind of battle that you just wish you could have recorded. Scythe got hit then pinballed between all three walls while in the air, and then finally came down on top of Flash. Scythe did a really good job deflecting a lot of hits, but all Flash really had to do was get it out of the center once. The main reason Flash had so many OS was because it would hit Scythe off balance, and Scythe would scrape itself to death before Flash got a chance to KO it.