my bike came with dunlop qualifiers on it front and rear. the rear is new, but the front was pretty worn, and had the saw tooth effect thing happening too. i bought a new front today, and the tyre they had was the Q2, a new model which seems to be perhaps slightly softer/racier than the rear tyre i have. will this affect me much. i'm not a real fast rider, but i'd like to know what i might be up against, if i do decide/am able to ride a bit faster in the future. any ideas would be muchly appreciated. thanks.