Which SP speedo ?

[S.A.W]

Hi,

I'm just sorting out a list of some bits for a B4.1 Team that I'm ordering and I'm probably going to use a SP speedo and motor but not sure which turn yet, won't be lower than 6.5t. I've used the SP GT2.0 Pro in a TC with 13.5t. What would be the best one to use in the B4.1 would the GT2.0 LPF be ok or do I need the larger GT or the newer GT2.1 EX ?

I would like to use the LPF as they can be bought quite cheap now.

Thanks.