As a player that went from YSE + R7 on both sides to BTY Hadraw 5 + G-1/C-1 combo (same rubbers as you have), I was also feeling that the FA's are different and have to adapt to it (and it ain't a quick process). Had to change my swing, sometimes it feels awkward / weird, not natural to me, but it's not the blades fault. Fastarcs are awesome rubbers, they have a linear behavior, no explosive trampoline effect. Yet they can be seen as "bad" for someone who is new to them (due to higher arc, grippy surface, etc.).
One thing that I realized was that somehow it suits me better if I'm playing with the C-1 on the FH. Don't get it either but it is what it is. Maybe before switching, try it as well.
As all the others already told you, you changed the whole equipment, now you don't know what is not working out for you. Having a third completely different setup won't help either. You can then start EJ-ing...or invest the money in some proper coaching (recommend).
Both of your blades are good, the Ma Lin Soft Carbon is not that fast of a blade, there are 5-ply all wood blades out there that are faster than that.