I’m a life-long competitive swimmer and I’ve been a college and masters coach professionally. I’ve used all the toys and created workouts with all the toys. I think there are pros and cons with the toys.
My lifelong swim friends and I call paddles and buoys “cheaters.†Starting way back in USA and college swimming training, for me in the 80’s and 90’s, paddles and buoys definitely were the choice during long aerobic, aerobic+, and threshold sets. Simply put, we could have an easier time making the intervals because we were faster and worked less to achieve those times. It was automatic: when the sets got long and fast, out came the gear, especially late into college years and into masters swimming.
Even as recently as last fall, when I did my “birthday swim (48 x 100 short course meters),†I got congrats from my swim friends for doing it all without “cheaters.â€
I see paddles and buoy as tools to help with technique, and as a time-filler when long swimming is boring. These do not, however, really help with water “feel,†which is essential for any swimming. These also to don’t allow users to simulate race conditions or proper body position, even when the end goal is to use a wetsuit (wetsuits are a completely different conversation).
Paddles and buoys can end up being a crutch. You swim faster, but your turnover rate, position, and stroke pattern are affected. As someone mentioned, it’s like training full time in the big ring, but finding the need to use the entire range during a race because of muscle power fatigue.
Paddles are great for helping you get “EVF,†and buoys are great for isolating your arm strokes. But these are alike to drills, mostly, and you can’t swim drills all the time.
If you want to get better, just swim. Swim fast so you can swim fast. Use tools/toys sparingly for the right reasons. That might even include things like passing the time, but don’t use those as crutches. And definitely don’t use these just so you can be faster in a given set. Never use paddles for designated fast or pace sets.
Finally, if you want the best tool/toy, IMO, use a swim snorkel without any other stuff. Besides the ability to focus on pure stroke and kick teq, you can really withdraw completely into yourself and tune out the outside world. Interestingly, in that way, it can help prep you for the relative isolation you’d feel racing in murky water that completely shrinks your field of vision.
Side note on drills, I read an interesting take on drills from one of the D1 coaches, head coach of a pretty good program, but I cannot recall for the life of me who it is. In essence, the message was that once you’ve “mastered” a drill, it’s time to stop doing it since you aren’t gaining anything. drills are about learning new movement patterns, and they’re supposed to be awkward. I thought that was an interesting perspective, and I’ve been trying to work in some of that to my swimming. I do very few drills, and the handful I do tend to be the same ones over and over.