What real difference does the lsa on a cam make?

frosty_the_punk said
[FONT=Verdana, Arial, Helvetica, sans-serif]Tighten [SIZE=-1](smaller LSA number)[/SIZE][/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Moves Torque to Lower RPM[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Increases Maximum Torque[/FONT]
[FONT=Verdana, Arial, Helvetica, sans-serif]Narrow Power band[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Builds Higher Cylinder Pressure[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Increase Chance of Engine Knock[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Increase Cranking Compression[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Increase Effective Compression[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Idle Vacuum is Reduced[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Idle Quality Suffers[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Open Valve-Overlap Increases[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Closed Valve-Overlap Increases[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Natural EGR Effect Increases[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif]Decreases Piston-to-Valve Clearance[/FONT]

[FONT=Verdana, Arial, Helvetica, sans-serif][/FONT]
Click to expand...

OK, so...
Smaller lsa increases overlap. Shouldn't this lower compression at low rpm and raise it at high rpm? I would have predicted peak torque moving to higher rpm, and lower cranking compression.

When I think too much about cams my brain hurts and I start getting basic principles backwards. Then I give myself a head slap and it hurts even more. I knew I should not read this thread. :banghead: :D

So tell me if that's why some of this seems backwards to me.