How to solve 7x7

My first solve for the 7x7 :



Hope to improve on the time in future.

I wasted a lot of time doing the 5th and 6th centres.

The last 2 pentadges were not as difficult as I expected.
Just apply the Lion algorithm repeatedly.

Edge/Flip Swap: (Lion Algorithm)
(Ll)’ U2 (Ll)’ U2 F2 (Ll)’ F2 (Rr) U2 (Rr)’ U2 (Ll)2

Each time, treating the middle 3 as 1 edge, or, middle 5 as 1 edge depending on
the situation.
Once u get the pentadges all of one color, just apply Lulu's algorithm if the middle is flipped.

Single Edge Flip: (Lulu's Algorithm)
(Rr)2 B2 U2 (Ll) U2 (Rr)’ U2 (Rr) U2 F2 (Rr) F2 (Ll)’ B2 (Rr)2

Step 3 has no parity - it behaves just like a 5x5 cube.