Well, at higher levels no. At lower levels...skill 1 is essentialy the same as the Skill+1 method or the half hit above skill method. Skill 2 would allow 4 hits(opposed to 3), skill 3 6 hits (as opposed to 4, seeing a bit of difference there, but wouldnt make as much difference in the half hit above. You'd see the most differences in 4+ skills, and at that point, a 4 is considered a very professional, well trained rating. So yeah, you're see most difference with this in low levels of skill. High levels, true, the limits would be pretty much negligible, but if you are world class in a skill, i think youve earned it.
Ahh, i am quite torn on this. I do agree, some of the technical stuff like massive system overhauls, brain surgery or building back a broken engine from scratch should require skill to use, im with you there. And like i said, my main beef is defaulting on anything and being able to nearly match one with the skill...if anything id houserule is limiting hits on defaults instead.
But on the other hand, i like how low skills are viable, like i said.
But again, someone who has a 2 Medicine and 5 logic might, on good luck, out-surgery(eh?

) the doctor with 3 Logic and 6 medicine. I think practice should make perfect and hte 7 Medicine doc should be able to do better than medicine 3 apprentice.
But as another counter-point...the problem with landing a cap can appear at high levels even, too. Take this example: Some of the really hard stuff to do, as said in books, can have insanely high thresholds. Say a Threshold 4 thing, with threshold mods for one reason or another, take it to 6....6 hits needed. A person with a 5 skill could do it...BUT they could never get net hits on it. (since they'd just HIT the threshold..they couldnt pass it.) Just a thought of the negative impacts of this. If someone has to hit a Threshold 6, they would probably pop a point of Edge for that, to get net hits there is pretty insane even for a skilled person, but unless they had a 6 skill, they could never break the threshold under Skill +1.
However, the other method of half hits could help this out a bit.
Quick edit: Rating 1 is beginner. For example, car is a seasoned driver with low insurance premiums.(which isnt bad actually.) Technical is hobbyist(i guess tinkering with cars on the weekend.) Knowledge is described as high school graduate. Social is described, however, as telemarketer and i beg to differ with that one

So you aren't stupid to the skill, youve done it, you know how to do it, but you arent great at it yet.