I currently have a Rev D on mine and although it not leaking boost, I'm trying to be proactive for once and nip it in the bud before it gets to that stage. Saying that I just found a nail in my tyre that I had just fitted last week and had several people coming to me at the local asda to tell me my tyre was flat so might have to spend my money elsewhere!
Get the rev g at least as much better than the rev d if staying standard
Sorry irish_ram I'd say save up amd just get the GFB dv + and end of IMHO
extra bit of money but less chances of leaking boost and mentioned.
Get that nail sorted first and hope it's not too close to the edge of the tyre or won't be repairable.