| Generally, as you add heavier caps (start with the third valve) the slotting will become more secure, but stiffer and less responsive. The tonal focus will increase slightly also. To really feel the difference it's best to have lived with the horn a while (a few days), then start experimenting with the heavy caps.
On my horn, I've ended up with just one on the third valve casing. Any more and the response gets too sluggish and deliberate for my taste. It's not, "one's good so three will be great", but it might be. It all depends on the horn, the caps and your playing.
Dave |