Re-tipping a one piece....

I've got a small pile of cues that are close to being, err, finished re-finishing. Which means I have a small pile of tips to fit. I find it a bit time consuming. i particularly find it a bit awkward getting downward pressure on the tip, and trimming (even with a new stanley knife blade), particularly with a one piece which I find a bit awkward and unwieldy (much easier with a three quarter, because you can unscrew the butt). I find it difficult to get square downward curts, and I find it hard to get them round so there are not edged to sand out (which i find doesn't go brilliantly, and leaves problems when it comes to burnishing).

Anyone have any, err, tips?

Re-tipping a one piece....