Much of what you say is true. The washers certainly are an inaccurate way to adjust VTA.
VTA is more or less critical, depending on the quality of the cartridge and your associated equipment ( how much it lets you hear the change ).
If you had a tone arm that was easy to calibrate and repeat the VTA settings, such as with a Graham or a Tri Planer, you would find the perfect setting with just a little patience and listening.
Correct ( or incorrect ) VTA can make almost as much difference in performance, as the jump from mid to high end cartridge would provide. The tonearm too high in the rear causes the bass to suffer and collapses the soundstage. Too low in the rear and the timber is muddied and heavily modulated passages are mis-tracked, distorted, or both. My hope is to help you understand what VTA does, although the Rega is not an ideal candidate for experimenting, unless you are a seasoned turntable guy.
As for cartridge, I will leave the ultimate answer to someone who had made the comparison with the Rega arm. As a guess, I would choose the Benz Glider or similar medium output designed moving coil cartridge.
VTA is more or less critical, depending on the quality of the cartridge and your associated equipment ( how much it lets you hear the change ).
If you had a tone arm that was easy to calibrate and repeat the VTA settings, such as with a Graham or a Tri Planer, you would find the perfect setting with just a little patience and listening.
Correct ( or incorrect ) VTA can make almost as much difference in performance, as the jump from mid to high end cartridge would provide. The tonearm too high in the rear causes the bass to suffer and collapses the soundstage. Too low in the rear and the timber is muddied and heavily modulated passages are mis-tracked, distorted, or both. My hope is to help you understand what VTA does, although the Rega is not an ideal candidate for experimenting, unless you are a seasoned turntable guy.
As for cartridge, I will leave the ultimate answer to someone who had made the comparison with the Rega arm. As a guess, I would choose the Benz Glider or similar medium output designed moving coil cartridge.