If you've studied systems which have spun off the CC Wei system, you'd see that the biggest problem with the original is the 16 hcp balanced 1C opener. Nearly everyone who plays precision now eliminates that with a min 17 hcp 1C opener with a balanced hand. Either 14-16 NT openings, or my preference 10- 13 NTs with 1D-1?-1NT showing 14-16. If you are going to open 1C with balanced 16 counts, you must upgrade your positives to 9+ hcp.