Check out this cool T2B drill!
The key to toes 2 bar is keeping yourself centered under the bar. If your center of gravity moves too far in one direction, your rhythm will be thrown off. This requires a large amount of lat strength to push the bar down and away (when you push your head back and back into the band in this drill) and then driving your legs back (band pushes you forward, legs go back).
This drill could help you understand the positions you need to be in for successful toes 2 bar, especially when trying to do them consecutively.