The commentary in this post is killing me.
As far as recovery goes, you get out what you put in. Consider a person who does LL then doesn't stretch or do physio and uses LL as an excuse not to train hard post-LL. That person will never reach their pre-LL ability.
I do tend to agree with the comment made that even Pre-LL, your body is only conditioned to some percentage of its physical potential. Post-LL, that potential may decrease in certain aspects of physical ability, stay the same, and go up in others (endurance, flexibility, agility, speed, strength, power, etc.).
For myself, I can say this: I'm every bit as flexible as I was pre-LL. Granted, I have to work harder to maintain that flexibility these days (which may be partially attributed to ageing). In terms of endurance, I can actually run longer distances than I ever could pre-LL. Leg strength is the same as it was pre-LL. I'm definitely slower at sprinting than I used to be, but it would be wrong to say LL is the sole reason for that - ageing, different bio mechanics, not having sprinted in nearly a decade, etc. Agility is a bit reduced. Power is roughly the same.
In sum, I'm in better shape now at 30 and post-LL than I was as a 22 year old college sprinter...and I've trained every single day since LL to get here.