Yes, you do have to do some thinking about your line layout, for sure. I don't think I'd want to go with a Maroske that could hold two lines in the same hole/tube. The hole would have to be too big and, I think, would look out of place. I just went with two fittings side by side in a double configuration. It worked well and I think it looks OK.

I wouldn't say that two lines in a hole would look out of place. For the Sea Racer last summer I used 1/2" OD hot glue sticks. I could fit double 1/4" bungees through the holes. I could probably have squeezed a third if needed. The difference in size was hardly noticeable and it gives a lot more options.

At the moment this was the best I could image I could find. Yes, having the larger holes on black did help the appearance.