Any tips for learning kfeds?

A medium sized flat tube, just get the basics of the knee movements of other skiers. I recommend getting it naturally and then doing it unnatural. First try to do more of “surface” swapping and keep your momentum moving, and then try to pop on the fs.

Have Carter or Elijah teach you so they can give more specific advice

Vishnew

Just my $.02 but imo nice mid-fat tube is the way to go, PVC is probably easiest if you have access to one.
Stop me if you can do these already but you should be able to:
1. Blind 270 off
2. Front swap to switch
3. Unnatural slide (optional but will be a huge help, try also an unnat blind 2 because that's technically what you'll be doing at the end of the kfed)

Once you can do all that it's a matter of chaining the swap and 2 out together and carrying your momentum through into the 2 out. Land the swap and keep rotating by continuing to apply pressure to your feet the same way you did to initiate the front swap. Look over your shoulder as you pop off the rail and commit to landing forwards and you should be golden!

Random tips:
1. Make sure you spin a full 90° on to the tube. Since you're trying to spin a lot in the opposite direction of your hop on, it will be tempting to 'cheat', but doing this will stop you from getting the power you need to complete the rotation
2. Go a little slower than you would for the 270 out