Got my 1250 out in for the 1st time in some pretty good conditions, my fav left hander - 1-2ft with not much wind. (I'm 73kg - 60 fuse/72 mast/ 212/ +1).
First impressions...
It's fast and has heaps of glide - it reminded me a bit of the Sig Albatros 165.
Pump is very good as long as your going fast, I could pump it about the same as my 1550 - maybe slightly better but if you loose speed it's all over. I find I can pump the 1550 up to speed even from a low speed.
I found it turns good (faster than the 1550), breached the wing tip and rode out of it a few times - ate sh1t plenty of times also.
The lift is nice & gradual, less than the 1550 - I had it fairly far forward in the boxes today.
I'll be riding it all this week & hope to get it dialled in more, very happy with it so far - it's exactly what I was looking for.