Anderton
The key is not to use the lassoo when dealing with song blocks that incorporate all tracks (which is what I need 95% of the time). I select all, then split at the beginning and end. Then I select all again, drag in the timeline, and have a keyboard shortcut to create a selection group. It takes longer to write about it than do it.
Usually I don't want to split the clips, as I want to preserve the extra beyond the end for cross-fading. (Also, I don't want that bit left behind when I move the section.) And sometimes there are MIDI notes with slow attack instruments where I play ahead of the first beat - splitting that clip will lose those notes.
But if you copy special and paste, they will. You can also drag and drop, then copy only the markers and paste later. I do that a lot of there are pitch markers for acidized clips.
I sometimes do the Cut Special and Paste routine; but since I can't split everything at measure boundaries, it usually ends up a mess.
As to clicking and selecting all being a pain when trying to remove a clip from a group, that happens if you use the Smart Tool but if you use the Select Tool, you can just Ctrl-Click to select the clips you want to exempt, then use the context menu to remove them from the group.
I'll give this a go, but generally I wouldn't want to remove clips from the group, just to quickly edit them individually. I did this with multi-tracked drums last year which were all grouped and it was a real hassle. In that case, it was worth paying the convenience price because it was essential that I was able to slide all the tracks around together, but in normal songwriting operation I don't think it would be.
All this would be irrelevant if the lasso worked in a sensible way, I think.
I'm sure more elegant ways could be invented, but I'm so used to this workflow in Vegas (where I'm always moving large blocks of video, audio, and automation around), that it's second nature and the fact that SONAR works the same way makes it easy for me. But it's also important to use the right tool for the right job or it gets klunky.
Have you ever tried Adobe Premiere? For the first 10 minutes you think, "wow, this is weird", but once you understand how it makes decisions on whether to ripple-edit or not, it's so much simpler than any alternative I've seen. No work arounds, no grouping, just drag and drop.