wow...do NOT push down hard and pull up, that is asking for a tank slapper when you come down. the push down isnt that bad, but pulling up is a no no. you could unintentionally twist the handlebars, and unless you got a damn good steering dampener, if you come down with them twisted at all it will most likely lead to a nasty tankslapper. hopefully you have a steering dampener though, but still, dont pull up.
with an r1, all you should have to do, if you really wanna power wheelie, is let off the throttle and then open it up, should pull right up in the first 3 gears. i rode a r1 a few times, and with the power in that bike im sure you should have no problem doin that. just lean back if you have to, and bouncing the front is okay, just dont pull up hard. just hit the throttle as the bike bounces back up.
however, i would recommend clutching. way more control imho. ill admit i power up the quad, but its a different beast. i always clutched my bike up, and i just thought it was way easier and more control. i could power it up but i didnt like it as much, and it felt less controlled.