I, & many others on here, have the same model. 4/8 SS bays & 1 or 2 IBAs. Clearly the friction IBAs wash better, but a Touchless IBA can make u a lil more bullet proof, from the "tunnel takeover"...🤐😰
1st wash i bought 5/1, i switched to 4/2 after a year of steady growth. Lines were too long, so...