The miscue limit is 14.3mm from the cloth (1/2 the CB radius), which gives you plenty of room since your tip contact point is going to be about 4mm down from the top of your 13mm tip, leaving a clearance of 5.3mm from the cloth.
But if you’re hitting power draws at the miscue limit, you’ll gonna have a hard time. Better to target about 80% of the way down to the limit, or 17.1mm from the cloth, because you get around 95% of the backspin with far lower chance of miscues. Now your 13mm tip has 8.1mm of table clearance - almost enough room to slip a snooker tip below it!
Or forget all the geometry of the shot, and go watch the great 9-ball players from the 80s and 90s draw the ball with fat shafts. Earl was playing last year with what looked to be a 17mm shaft — as you might guess, he drew the CB just fine.
If you’re having trouble with the power draw shot, your 13mm tip diameter is not to blame. If you’re hitting cloth first with it, you’re hitting too low.