I do some kick board sets and I seem to have a reasonably strong kick (not great, but adequate). But when I am swimming w/o the pull buoy, I seem to have a hard time coordinating the kicking properly with the crawl stroke. I think my legs are sinking too much and my swimming kick is too weak. w/o the pull buoy I seem to get almost no glide at all, either due to lower swimming speed or some other factor which makes for extra strokes, more work going into a flip turn and for general inefficiency.
Is it common or normal for non-swimmers to be significantly faster and more efficient with a pull buoy aid? I get why fins would be a big boost, esp. for avg. swimmers, but I am not clear why I can only swim well with a pull buoy.
Any helpful theories or advice?