Just lined my Sage 7100 XP with a 7wt. A total re-learn how to cast with that long head. This is NOT a WF fly line; this is a cast at distance fly line. Lots of grains but over 65'ish feet but it will be a 'OK, this is going to take some time to get this one dialed in.'
If you're 'fishing short,' under 35 foot, take a pass. If you need to really chuck a fly a long way .... this is one to really consider.