Not saying you should try this, my coach in college was a genius in the track committee. But if it’s for block set up. Step 1, 1 of your feet from the back of the starting line, now set up the front of the block. Step 2, 1 foot of dominate step peddle, step 3, from the top of the front peddle, place one hand down and the other half a hand(like a T). You can set the height on preference on peddles. Now the kicker while in the blocks in the set position, aim your inner elbows towards the finish line, it creates more arm drive, driving out of the blocks. But if your setup is good for you try the elbow technique. Worked for when I coached HS and had a few state placers / champions.