I've mastered the Advanced Frog (still working on bent arm/bent leg planche hold) but I find myself unable to hold myself up for even 2 seconds for the tucked planche. I feel it's more of my core not being able to lift me up (might be muscular amnesia b/c I don't feel it 'kick on') and not my scap strength.
Suggestions? I've gone back to Planche Leans for the last few weeks and I think that's helping but don't want to waste time if there's something else I should be doing. Thanks!