TXIrish or UK variant?

Hello. I am considering sitting the Tax exam in the next session and I was wondering if it would be better to sit the UK variant rather than the Irish one? Mostly, because if failed, I still have the option to re-sit the exam in September rather than waiting for the next session which would be in December (only able to sit the Irish variant twice a year while the UK can be sat 4 times a year) Also, there is no free content such as Opentuition for the Irish variant which is also a bummer. I have sat the Global variant of the Law exam for this exam same reason. Any advice would be appreciated. Thank you.