Holy cow, I think I saw the light yesterday.
I have a longbow that shoots well. It shoots well with 2018's with 150gr point, and 2016 with 125gr point. Very dynamic bow. I bare shaft it in my garage at 3 yards and at 15 yards, and shoots a bare shaft great, so I figured I could use that same procedure at 3 yards with any bow and come out with the same great results at 15 yards. Espeically since my longbow is faster than my recurve. WRONG
Ok, I have a recurve, 50lb dreamcatcher. A hair slower than my longbow, so I figured I needed the same spine or less than my longbow. I have been fighting with this thing since day one for months. Adding material to the shelf, taking it away. Paper tuning, moving nock up and down a hundred times. Different string material. Tried 2016's and 2018's with 100gr tips to 250gr tips all close up at 3-4yards in my garage. Bad, bad, bareshaft fight. I was about ready to get rid of it.
But went out my yard and spent a few hours with it. At 15 yards bareshaft tuning told me all my 2016's and 2018's were way too weak spined. totally different than in the garage. Wow, I thought. I found some 2117, 2216, and 2219 shafts. I tore off the fletch and went to work. At 15 yards, 2117 with 100gr and 125gr tip showed weak spine. But 2219 showed stiff, put a 200gr head on it, and bam, its shooting like darts. Didn't give 2216 much time. But I might this week. Not sure if I want to buy 200gr broadheads.
So all I can figure is I was not giving the arrow enough time to come out of paradox which gave false indicators. But it worked great on my longbow, cause maybe my centershot is more centered??? I don't know.
But who would have thought a slower recurve would have needed that much more spine than a longbow? I mean 2219 and 2016 is a big difference.