I knew I was having issues with the warp because many, many, many times I have had to unweave a few picks (a weft thread) because the adjacent warp threads were sticking to each other and causing vertical floats. I admit it, some were so far back of where I was, I left them [bad me!]
But when I cut the scarf off the loom and turned it over - I found not only vertical floats but horizontal ones as well. The more I thought about it, I began to realize that this must be caused by my shuttle going under the wefts and I did not see it through the shed (the area where you place the shuttle which is created by the raised warp and those at rest).
But how could the shuttle go under warp threads??? I think that the warp threads were sticking to each other but because of the tension being tooooo loose, these threads may have lifted slightly and the point of my boat shuttle caught it and whoops, under the warp threads it went.
Being the perfectionist I am, it tends to make me wonder that I am not the good weaver I think or would like to believe I am. Actually what it comes down it is.... experience and paying attention to the warp tension. Hey, it is a learning experience and just had my lesson.