I'm a semi-convert to tippet rings. They make for flexible and strong leaders but they don't make untangling any easier!
My first choice floater lost its braided loop last time out (my clumsy application of Mucilin

) so I've nail knotted 8ft+ of tapered leader, down to about 6lb and put a tippet ring on the end. I can blood knot any sort of tippet to this, and make an easy dropper, potentially from the tag end or tied as a seperate length.
This was a better fix than my temporary grinner that I used for the last half hours fishing but with that I noticed better turnover and less sinking of the fly line end (the original reason for the addition of Mucilin). There has to be less wind resistance, and less 'elbow' than even a well fixed braided loop. I've had a good swing on it and it seems secure. Would a dab of superglue help or hinder do you think?
Someone on here pointed out that a dropper on a tippet ring acts as a tell tale if you miss a bite, as the knot will be pulled down parallel to the main line. I guess that depends on how tight your blood knot is but I'll watch out for that. Nice to know which fly is fishing the right depth and attracting the trout.
Problem with tippet rings is they are tiny, and even in good light and with the aid of a retaining paperclip (less likely than a safety-pin to flirt them everywhere or stab myself with the pointy end!) they are fiddly. I prefer to tie them on at home. They are manageable once they are tied onto at least one length of tippet.
I've been tying three turn water knots and found them fallible with hard fluorocarbon. I'll have an experiment with Pirate's suggestion of two turns only.
SharkeyP