Let's compare it to a similar river. The Squannacook River, as I write this, is flowing at 87 cfs and has a decades old median flow for this date of 180 cfs. The Mill River is flowing at 63 cfs and it's median rate is 133. They are similar in size but let it be known that the Mill wasn't ravaged by last summers drought like the Squannacook was. It's trout made it through the entire summer.
Where do I fish it?? Get Google Maps and look up River Road in Haydenville/Northampton. That's all you need to know. April and May are perfect throughout the entire river with the slower, deeper pools holding trout through the heat of summer. Most of my trout have been taken with reliable comparaduns and with Tenkara presentations.
So if you still have a few casts left in that arm after a day on the EB stop and try the Mill River or just fish the Mill. You will have it to yourself no doubt!!!
I had to reprint the quote from Tom Dorsey of Thomas & Thomas fame after hearing more about "artificial bait fishing" (nymphing). As I wrote not too long ago if you are fishing with mostly mono beyond the rod tip you are probably not REALLY fly fishing but pulling a page from the stream bait fishers manual. It's the same style I used as a kid until I fell in love with the look and feel of an unfolding fly line. One gets the feeling that Dorsey has in mind those beautiful casting wands that he makes as opposed to butt heavy hinged weight throwers.
Just my opinion!