Front Lever Hanging Leg Raise

I have not seen this elsewhere, so I have invented a name for it. No video yet - will have to take one of myself doing it.

It's a combination of a hanging leg raise and the tuck front lever. You hang from a bar as if you are going to do a tuck front lever. Slowly move into the tuck front lever by raising your legs. I can only do this if I tuck my knees tightly to my chest. Hold the tuck front lever for a few seconds, then straighten the legs and angle them so they are at an upwards angle of 45 degrees to the horizontal, then lower them as slowly as possible. It should get really hard as they approach horizontal - if you can hold them there for a while before lowering completely, then great. I cannot!