[kieran]

Looks to me like your are using TTU grip in these pics. 10-2-F
As for my thoughts on grip size it is pretty much an individual preference, so dependant on what grip you choose to implement you could easily change your grips round that choice. You can even wrap them with tennis grips if you so wish though im sure there are stipulations on the "how" of doing that, for alignment purposes etc...

Loving the golf hand though!!! The sign of someone that plays golf a lot the dead white left hand look