I have similar problem to JC - I have an approx 4ft grafted Pantin that has not yet branched, so I'm finding this post most helpful (espec. good from Felipe with the photos). I have a cooler climate than JC though - is it ok to pinch out the tip in winter, or should I wait for warmer weather to return? (Winter temp is generally 46-68f .) Also, is it advisable to seal the cut? Any advice would be good.