Sad to say, but I haven't seen Your 351 run, so information I provide may be unimportant to You. If you were using a measles cue ball, it is to be expected. The measles cue ball is traditionally polished to the same specs as a carrom cue ball. That measles cue ball has built-in specs defects. If you care to test the ball using drop height information onto a steel plate, you are likely to find that the ball dropped from the same distance will bounce to differing heights on most every drop instance. Hard to gather all the specs on those Aramith produced cue balls. They don't give specs for them. Other than being able to see spin on the measles cue ball, there is absolutely no reason for the added spots. Championship pool of any game should never be played using these audacious measles cue balls. Every critical shot is a game of chance.Thanks for input as I am always willing to learn about how Mother nature effects Pocket Billiards. The Brutal skid occurred near the rack - where I kept laying the tip of my cue while re-racking. It was only one tip of helping english and a half ball hit on the dreaded thirteen ball. Oh well it's over now - but it did stop me in my tracks. I have learned to not lay the tip of my cue near the main traffic (rack area) after the 13 ball I will employ a dehumidifier near the rack area - if I start practicing and recording any future runs. Also thank you to any and all who purchased the 351, that and the 280 are the result of many hrs at the table.