The reed is one part of a larger set of components, ya know? The components being, reed, horn, mouthpiece, lig and most important, the person playing the horn. The longer you play the less similar you become to anyone else, the more personal your musical journey on sax becomes. Ultimately, the equipment is a means to an end but there's no way to know what will work for you without trial and error.
So it's not a simple question or answer; the answer would depend a lot upon what you're playing now, in terms of both equipment and performance. If you're practicing your harmonics and long tones and have reasonable mastery on the horn from low Bb to high F, then simply moving up a half size in reed strength with your legit set-up might do wonders. Or, with a jazz set-up, moving up a step or so in tip opening and down a half size in reeds may get you going. Any way that you go with the equipment, the extended range is best seen as a long term commitment........daryl
