EKG Rhythm Strips

I definitely had to brush up on my heart blocks last night. The first 3 strips are the same patient. Patient was admitted in Atrial Flutter 120's then converted into sinus a few hours later (Not sure what meds were given). Ever since they converted they had various blocks. They would go back and forth between 2nd degree type 1 and 2 and then started to look more like High Degree/Advanced or complete. In the 3rd strip you can see a junctional escape and then a P wave fusing into the last QRS.

7th and 8th strips confused me a little. It looks Junctional or Ventricular but is fairly irregular. Also I see a lot of patients with rate dependent BBB, can you go into a junctional rhythm and then have a bundle change during that rhythm only?
 
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