Are these ones you have grown from seed yourself, with an upright habit, or are they trailing surfinias which you have bought as babies? I would go with pinching out for the first, but not necessarily for the second. I don't know enough about it to say. Get 'em out into the daylight as soon as possible, Steve, even if you have to bring them in again at night.

Many Thanks for that.....These are upright ones grown from seed(sow by date 2007) i found at a car boot for 10 pence.
F !s at that.

Well, even if they are lanky, you're doing well to have them germinated at all! Got to keep 'em going now you have them this far. I think potting on and lots of light are key now. If it's as cold there as it is here right now, I think you're safer taking them in at night still. Good luck!