Empty Handed:
I agree with you 100% I had a Underwater Camera LQQKING at some big gills suck in my bait. Once he took in my bait 8 times and the Float never moved ONCE.
I then switched to my VERY OWN springbobber..
Want a NEAT TRICK? Take a BIC LIGHTER, take the cover off, Then take the ROLLER out, remove the Flint, THEN....Take the Spring out, TAPE THE SPRING to the end of the rod, REMEMBER to thread your LINE through 1st, THEN.............Take the end of the Wire, and PULL IT GENTLY..
You'll have the Most Sensitive Spring Bobber FOR FREE!!!!!!
Hope this helps..
Stan