Taper length of older OPS's and shafts

[roadrunner 12]

Hey everyone, just shopping for a new tapered shaft and I'm just getting confused now with all these different taper lengths and taper names(power taper etc.) I haven't purchased a stick since 2008 when things just started geting nuts. Anyways just out f curiosity, does any know what the taper lengths were for the older sticks. For instance I have an L-2 and just wondering what the taper length would be for it. Or for the 1st generations synergy's.

[Chadd 916]

Original Response was 11", I believe the M1/L2 and Synergy were the same.