In that case, whether you set the SRA of your stylus anywhere between 91 and 94 degrees will make no difference, because the error while playing any LP is random.
Wally Tools talk about SRA in some detail (amongst many other topics on setting up a cartridge) in their online 'WallySchool';
www.wallyanalog.com
Reading through the Wally Tools information, even though SRA is an important parameter, the parameter that seems to have more importance of being correct in order to get the most information out of the grooves and a parameter that many people don't know of or realise is the stylus's 'Zenith'. Wally Tools / J.R. go into great detail about Zenith and the 'Zenith Error' in particular the wide range of errors from some cartridge manufacturers even very expensive ones !
This is the one parameter i.e. 'Zenith Error' for my cartridge I haven't properly checked yet, as I am still awaiting (been waiting over 3 months now) for the UK Distributer for AnalogMagik send me the V2 upgrade for my V1. Once I have V2 I can check my Zenith / Zenith Error (along with the other parameters at the same time and any error I find, I can correct it using the 'WallyZenith' Tool to re-set my cartridge to offset any Zenith Error I may have.
However, what I am waiting for is for Wally Tools to complete the development, build and bring to the market a tool that can read the cartridges Zenith Error directly / semi directly and more accurately. Hopefully it will be available to purchase by end of this year.