If your flying style lends itself to enjoying your flying low and slow (3D tendencies), you might enjoy flying with the CG back a little from suggested....
Good call on TR's part though. You should know about where your CG is anyway. In the case of this plane, and 99% of the suggested CG's I've ever run across, if you're close (within 1/2"), I'm sure you'll be fine. Not knowing how you're set up with the cowl on makes the CG warning something you really should consider. Especially if you're already back 1" from suggested CG with cowl on. -Al