I'm upgrading my rod to a heavier rod. I currently have a 5/6 wt rod, with WF7I line on it. I'm moving, most likely, to an 8wt rod. While I eventually intend on adding either 8 or 9 wt line to the rod, will I be ok in using the 7 that I currently have on my reel with the 8wt rod? The reel is intended for 7/8/9 wt line. Thanks for your help.