I would have to remark that a study is needed to determine the relationship between 14.8 volts and that newer higher absorbsion recommended limit. 14.8 had been the standard for four decades.
Trojan would have had to adopt a hybrid calcium format to justify a higher voltage. And my question would be, why would they do that? It involves a percentile substitution of calcium to an otherwise straight lead oxide format. Other than render the battery less vulnerable to higher ambient temperatures a lead oxide calcium negative plate would be slightly more shock resistant. This has been of insignificant value in a golf car package. Hybrid construction and radial grid design go hand-in-hand.
Curious