foot placement on pop up

hi! its my first time here so be gentle
anyway, regarding pop ups, i can always do them smooth and quick but, my back foot almost always gets on the board a split second before my front foot does (hell, sometimes a full second maybe), i was wondering, is that really bad form? i was made to believe your front foot always gets on first but i just cant ssem to get the hang of it..
thanks!!!

thanks!!!
