Actually the opposite, because they recover faster a slightly weaker spined carbon will probably appear to fly well. However weaker spined carbons are seldom the problem, they tend to be rather stiff.
In my experience trying to compare woodies to carbons will frustrate you, they are just different animals. Carbons will tolerate point weight variances remarkably well, but are very length sensitive and will get really stiff in a hurry.
If trying to set up for carbons, the best approach IMO would be to search past threads for info on what others with similar set ups have found works for them. That should give you a reasonable starting point, allowing you to be close enough to fine tune to your rig.