Depends on the end effect you want to accomplish. Take this basic effect in magic, the "Ambitious Card."
If I lose the card into the deck, shuffle the deck and after performing a few flashy cuts, the card is now on top. It is impressive. The magician was able to find the spectator's card and demonstrate some level of skill.
If I take that same card, and slowly lose it into the deck. Then snap my fingers and suddenly it is on top. It is magic. The magician didn't do anything and the card suddenly is now on top. This actually makes the magician appear to have less skill which raises the level of wonder.
Here are two of my effects that incorporate both of these ideas.
Lets talk about the first 3 phases of my routine "Ambitious Ink."
Phase 1: I do some flashy cuts to demonstrate that I could be using skill to find the card, but I immediately squash that idea by making a joke saying "but I am not going to do that. I will go VERY SLOW"
Phase 2: I have the card signed and squash the idea that I have a bunch of the same card in the deck. I then slowly push the card in and very slowly show it is not on top yet. Then when I reveal the card it makes it even more impossible.
Phase 3: I tell the spectator that they can do it too and give them the cards. Now the magic happens in their hands, squashing the idea that I am using sleight of hand. How could I if I wasn't holding the cards?
You see how each phase builds on itself and each card reveal becomes more and more impossible? This is a demonstration of a more classical feel and making it about the magic and not necessarily the skill.
Now let us look at my routine "Tu Tu Transpo."
This effect actually has the opposite feeling. I present it as using "skill" to find the card. Howver you will notice, it still maintains a magical aspect in the final reveal.
Phase 1: The first card is found by cutting to it (demonstration of skill.)
Phase 2: Second card cannot be found the same way (magician messed up.) To make things better the card will shoot out of the deck (again, showing off more skills.) Ultimately the magician fails again and the spectator's expectations are lowered even more.
Phase 3: The magician realizes he cannot really find the cards using skill, so he finds them in a more magical way, causing the two cards to transpose.
You see how this routine was a demonstration of skill, however there is still a magical element? And the same for "Ambitious ink." That routine is very magical, however you still have a little bit of room to be flashy and in fact add to the magic in doing so (by showing you can use skill, however you will not in this case and infact do the opposite. You will do nothing...)
These ideas can both be used in conjunction to create some fun effects that the audience will enjoy. It just depends on how you want them to feel at the end.