I was wondering which rod is more sensitive and overall which is a better rod, one with 70 million modulus or like an Im7. Thanks for help.

Hard to answer without more info on fish species, technique, fly, casting, spinning? Modulus doesn't mean much if you don't know how it is used.

What spencer said - also, doubtful any rod is made with all one modulus graphite. Generally the manufactuer states the highest # for marketing. For instance the Winston Boron has, I think, about 10-15% Boron. The rest other materials. The tip section will have a lower modulus material for durability.
Herb

I would be extremely curious as to how you would answer the question after you read this:

[rodbuilding.org]

Gon Fishn

Another point to add is how you build it.

Using bass blanks as an example - Take the same model SCV and SCIII. Load up the SCV with DFguides, full grips, etc. Then take a minimalist approach with a SCIII and go split grip, micro guides, split seat, etc

Now you tell me which rod will be more "sensitive"?

I might be a little extreme here with the example, but it illustrates my point.

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