Is there any practical reason I couldn't line a reel that's meant for 4 weight line, with 5 weight line? I can get a good deal on a 4 weight reel, but I'd want it for my 5 weight set up. (For the record, my old 5 weight reel (a Sage 2550) just fell apart - the spool fell out, the drag adjustment fell out, etc. I'd send it in to the repair/warranty department, but it costs $50! How is that a warranty? I've already had to send it in once when the fee was $40 - so i could keep using the warranty but I'd rather just get an inexpensive reel that would last more than 3 seasons - but this is another thread entirely, so I digress...)