If they wanted to make it tougher, how about the CB behind the kitchen on a scratch on the break instead of BIH ANYWHERE. That is a huge advantage. Not to say that the breaker shouldn't be penalized, but you are practically guaranteeing that the incoming player is out, because they can break out the trouble balls right away AND take the most favorable balls. Just a thought because this rule is radically different than the one most of us are used to playing in 8ball.
Also, regarding groups of 10, Mike S. should consider that it will now be easier for others near his ranking to pass him up. If you have 15 groups of 10 and 6 move on, then it would go to 15 groups with 6 and probably 3 move on, then that leaves 45 people only going to the 3rd round. It will be harder for him to move into the 3rd round, since there will only be 45 people left, rather than the 60 now. At 45 players, then it will probably be 9 groups of 5 with 3 advancing to leave 27 players into the 4th round, rather than the 36 in the 4th round now, etc.
So it will be easier for the first groups to advance out of the first round, but tougher to get into the later rounds. Maybe the ratio will be commensurate with the smaller initial field (150 compared to 200), but I am not going to do the math, lol.