Nice pickup!
I shoot with a fullspliced Lambros bacote into curly. I love it! I am also using the Ultra Shaft, but mine has a different logo on it. The balance is perfect for my style, but many may find that it's a little further back than they prefer. I also have a custom he made for me and it arrived right before the new year. Just a few words about the differences between the 2: His customs hit far better!! The fullsplice are blanks that he purchases and finishes to his dimensions and, of course, include the Ultra Joint. So the 'Hit' that his cues are notorious for is present, but not as announced as his customs. I've used the same shaft on both butts on the same table during the same practice session and I've noticed. Even though this cue is fullspliced, I find that the feedback is more loudly spoken in my custom. But that happens to be a wrapless cue. My preference.
I noticed you were seeking feedback on his Ultra Shaft (U/S) compared to Predators. I'll give you my 2 pennies here instead. But just to be fair, I have to say, I haven't shot with a Predator in a while. From what I can remember is where these pennies will come from. The U/S needs not much off center hit for it to provoke plenty of spin on the ball. That said, there is no need to strike at extremes. That, in turn, translates to no need for compensating for deflection. However, the U/S can be played just like his regular shafts. Which, in my mind plays fantastic and already possess low deflection characteristics.
Ummm... I think that was less of a comparo than it was a write up. Oops.
Either way, congrats on a great choice in cue and welcome to the 'Lambros Family'.
Enjoy the grins this cue will provide you. But I'd like to urge you contact Mike Lambros and have him build you something that you'll love. He's always great to deal with over the phone and there's usually plenty of laughs. He's uber cool for a serious artistic craftsman. A true cue engineer with a mind that never not ticks.
I don't post much, so a quick search will show you what I have from him.
xJ