Of course you can join Bubble, the more the merrier here :)
Which half are you doing? If you are at 12 mile runs now then you haven't got much more to do for distance, unlike me! I am trying to work up slowly and steadily this time (I'll be doing my 3rd half in the Autumn) and sticking to a regular plan rather than winging it a bit like the last two times 
Lovely run last night with running club. Went out with the same group who I thought were a bit slow for me but it was a longer and tougher run this time and although it was still a bit slow I really enjoyed it. A new route too so I want to go out and try it on my own and see how I do.
So that's 32:30 from parkrun and 56mins from last night making 121:50:18 I think. Really hoping we are going back to miles in August :)
HalleLouja and Cardiff - am going to try and work on DH to do gymnastics run this w/e so I can come and do parkrun. St Albans is my local one but haven't been yet.