Yeah for Seni, are you going?
I'm having one last session today to practice a few things so will try to work something out!
I am living in Korea untill September so unfortunately I won't be entering the seni this year. I was a bit disappointed that only 1 person from my old club joined and she was pretty new to the club anyway. I don't really want to say which club it was, but I moved to Mark Waldars club about two or three weeks before I left for Korea and it was an excellent club.
They will have a large tournament on May 11th which im entering. Ive been putting in as many hours of training as I can, my cardio has definately got better but at the expense of nagging pains throughout my body.
I am having the same problems as you, as in the take down problem. You don't have much time before the seni so just jump into guard. As soon as they say to start running at them immediately before there is any grip fighting. If you do happen to lose 2 points for the other person technically taking you down, its better than being fully thrown in a position where they can move to side control, mount etc.
When you jump into guard at least whatevers next will happen on your own terms.
If you absolutely need a takedown, go for the single leg, double legs although easier to finish are harder to get hold of.
So to summarise, pull guard even if you have to lose 2 points. If you don't have the experience of takedowns and throws then you can't learn it in the time you have left.
Anyway, tell me how it all turns out and good luck.