I use Parks ten times a day to remove tires. I use my superhuman thumbs to install them. It really is technique, you shouldn't ordinarily need to use tire levers to get a tire on.

I do sometimes use some old alluminum levers for really tight tire removal as they are thinner and take up less bead room.

KoolStop makes a levering tool that works well for installing tight tires, I couldn't find a picture of it, sorry.