In this video from 1988 Chiba sensei offers instruction on suwari waza shomenuchi ikkyo.
Here is Chiba Sensei again in 2011 demonstrating suwari waza shomenuchi ikkyo. As he slows down to show the initial contact, note that both hands make contact together at uke's elbow:
link to view on Youtube:: https://youtu.be/tgOYPIPOn30
Phillip Vargas Sensei demonstrates suwari waza shomenuchi ikkyo and clearly shows the placement of hands together at uke's elbow. Note how his entrance is compact, elbows down and close to his body. Which knee moves in as he performs the cut down?
link to view on YouTube: https://youtu.be/YazjeLAOKgw
