Smooth Sop Berator said:
I believe you are making an incorrect assumption regarding the reason for differences in reed strength. .......y.
I don't think I misinterpreted the question ( which was answered to the satisfaction of the original poster I believe), and also I don't think that your comment has anything (if not in loose terms)to do with the question asked by the original poster (always a good idea to read what an answer is actually answering).
The question was if the relative size (shall we use this term?) of a reed has to increase or decrease while increasing or decreasing the tip opening.
My statement is that, in order to keep approximately equal resistance and playbility, if you increase the size of the reed you should reduce the size of the opening (by using a different mouthpiece) and otherwise, if you increase the size of the opening (should you use a larger opening mouthpiece) you should reduce the size or strenght of the reed.
It goes without saying (it is commonplace, really...but this wasn't the question at all) that different brands and different models (design or cut) of reeds you have different resistence and that also within the same Brand or Design the various crops turn out different reeds. It has been my experience that the same Brand and the same strength perfomed completely different between one batch or the other of the cane used to produce the reeds.