Correction. I would not program sumo pulls as a main movement and then conventional as a main accessory. I would alternate each week between sumo and conventional. Posterior work will be one of the best aids to your sumo pull. Conventional pulls are a huge posterior builders.https://twitter.com/tellfisher/status/982099902439227392 …
So in a sense, yes, you are using conventional pulls with the goal of building your sumo.