I have a really nice 7wt rod+reel and some other rods that are a 6 and 8wts that are just ok. I fish quite a bit for Cutthroat trout that range in the 5-15lb class and also I fish smaller rivers for trout that range in the 1-8lb class. Then I sometimes fish lakes from a toon for trout again in the 1-8lb class. My question is would the 7wt rod be to heavy to use for all these fishing applications or would that be a decent rod to use for all 3? If it is to heavy of a rod for the lakes and the river what makes it to heavy and why would you use a lighter rod?