The results are in. This turned out to be harder then i thought. I was testing the OB-1 vs the OB-Classic. OB makes 4 LD shafts. The above two use a pro taper and 12.75mm ferrule. That matches what I've played with forever, so I tested them. After doing various, inconclusive, experiments with my hard maple shaft and the two LD shafts I decided I needed to make it easier and eliminate one of the LD shafts. OB describes the OB-1 as having a "soft, quiet" hit and the OB-Classic as having a "firm, hard" hit. The classic hit matched my hard maple shaft feel well so I went with it.
I did various tests suggested in this thread but was getting inconclusive results. I found it was because I was using BHE, back hand English, which compensated for squirt. Once I started using English while keeping the cue parallel to the aim line (as though I was using no English) the results became obvious. I justify this methodology by assuming I want less variation in my play. A lower LD shaft will require less BHE to compensate and I will have fewer missed shots due to accidentally not compensating.
Next I tried the experiment suggest by the poster who suggested placing three balls in the center of the end rail, separating the end balls slightly, and removing the center ball. Then putting the CB on the foot spot and trying to hit between the two balls with English. With my maple shaft I did this successfully 1 time in 6. With the LD shaft I did it three times and the other three thinly hit one ball (the hard maple shaft hit the object ball thicker).
Next I placed an object ball in the center I the table and the CB about 2 diamonds away, creating a long straight in short along the diagonal of the table. Shooting hard (but not break speed by any means) and with lower left or right, made the object ball 10% with the hard maple shaft. All misses were to the side expected due to squirt. With the LD shaft I made it 40%-50%.
I played a league match with the OB-Classic and had no issues. I'm going to order it.
Thanks to everyone for the tips.
- Jeff in Frisco