Suggestions on Fly fishing weights

[Capt. Lou]

Most NJ and surrounding state waters a 7.6 or 8' #4 is all u would need with the exception of larger river Delaware or lower Raritan .
The longer rods u describe are easier to cast if thy are tapered correctly but downside is length in tight quarters .
Only ur level of proficiency with the rod will govern ur success in many waters .
As far as taper the 3 weight taper will resemble an standard trout rod taper in spinning rods so it's capable of landing trout upwards of 5#'s easily . The UL taper of the rod will allow up to pressure any big fish quite easily and allow u to C & R without issue .
All this depends on ur overall efficiency with the fly rod n expierance fighting bigger trout .
I would definitely put a DT line on that rod , which would allow it to load quicker in smaller areas , the longer rod length will permit u to roll cast thus avoiding many pitfalls of a standard fly cast .
Make sure ur leaders are consistent tent with this presentation and turn ur flies properly with minor cast strokes .
Many so called #3 weight rods are not , so if U don't know then find an individual that does and make sure the basics are all in order that'll make it easier to start
Good luck !