Hate to burst your bubble, but nothing will feel the same AND with larger sweetspot. Besides, "sweetspot" is just an illusion.
Stiffer blades will feel like having larger sweetspots because 1: higher stiffness=more uniformity, 2: higher stiffness=less perceptible vibration. But everything is a balancing aact, you change 1 part, the others must change with it. So having a larger sweetspot WILL feel different.
But different is not necessarily bad. A stiga clipper will have a bigger sweetspot, but feel completely "different" from your Samsonov (but not necessarily bad). Clipper: Fast, stiff, medium hardness, solid, linear/predictable, medium high uniformity, crisp, heavy. Compared with your TSPW: Medium speed, medium stiff, medium soft, hollow, springy, medium low uniformity, very crisp, light.
Nothing will be better but the same. But try a few different blades of different characteristics and maybe you will find a "different" feel that is actually "better".