Are you working any other muscle groups... These all seem to be abs exercises. Sounds like you need more lean muscle mass and the only way to get that is by training all muscle groups...
I still would not cycle at such a big difference... my own preference is to eat the same each day, then I can be sure of exactly how many calories I am eating.
Off to the home gym today, after a long day at work and getting home late, I'm really glad that I have enough equipment at home to have a decent work out.
The body transformation comp is just that... transforming your body - so you will (I'm sure) find that with regular exercise, lifting weights and a good diet your body composition will change as you...
I wouldn't think about the figures too much, just make sure that you are eating more than your maintenance calories and make sure you are lifting... compound exercises like bench press, squat and...
I think you should start bulking now... you need to build up your lean muscle too, which will happen with the weight training... if you cut too much more you'll just look skinny.
