straddle planche

i have been training planche for around 1 year now and i can hold advanced tucked planche for 10seconds or more with good form.i also can hold a cracked planche[straddle planche with not straight legs]for about 10sec.today i tryed to hold my first straddle planche and i could hold it for about 5 seconds.should i keep training advanced tucked planche hold until i can hold it for around 20sec or move on to doing straddle planche hold for 3-5seconds. i know i can hold it for only 5 second but im feeling my shoulders getting stronger when im holding it so i think i should try to get better at straddle and stop waisting time at advenced tucked.tell me what u think its the best choice to do here.thank u

Several sets of 30s advanced tuck, then move on to straddle.

Yah, at least 30 seconds in advanced tuck, and preferably more than 60 second for a one off max hold.