Honestly, I don't know because I haven't followed all of the posts very closely.isn't the above bold what Cj has been saying?Well stated! Both squirt and swerve happen with every off-center hit. Squirt dominates with fast-speed shots, where the amount of swerve is small. Swerve dominates at slower speeds, higher cue elevations, and with stickier conditions. With certain combinations of cue elevation, shot speed, shot distance, and the amount and type of english, squirt and swerve can cancel each other out (for a given set of conditions).
Regardless, even though it is possible to cancel the effects of squirt and swerve by changing cue elevation, this is very difficult to do reliably and consistently over a wide range of shots of different speeds, distances, amounts and types of english, and conditions. I agree with PJ that it is much easier to keep the cue as level as possible and adjust for squirt, swerve, and throw as appropriate for a given shot. This ain't easy either, but it is much easier than attempting to adjust cue elevation as everything else changes.
Regards,
Dave