Kevin, it is all very much up to each person's
opinion. I personally do not use an O ring, but
I occasionally use shrink wrap but I've lost
worms on all those techniques.
Personally, just hooking perpendicular to the
worm works just fine. Now if you are talking
Yamamoto Senkos, then yes, they are a bit
more "brittle" than other varieties. I found that
I get a few more fish out of the Bass Pro Stik-O.
And comparing to TX, in MY experience, I've
done both, but I do wacky more because it
has caught me more fish. That simple for me.