My original plan is to add a dedicated tweeter like the 2404H of JBL or the Beyma CP-25 at less than half the cost. Here are a few of my other questions:
what is the difference between a 100 x 100 dispersion and a 100 x 40 dispersion in a home environment, will the 100 x 40 be enough for hi-fi use in a tweeter?
if i use a tweeter, will it be better for me to use a 2" exit driver to have more freq. range? and can also go down to 1khz?

we also compared 2" exit drivers of BEYMA CP800ti, CP650ti, JBL 2450nd (old) and also an old EV, and I think the Beyma's are not left behind in sound and still found the JBL2450's to be still a little forward sounding for my taste. My other companions during that comparisons all liked the EV better than the JBL's, but the EV's are more than 3x the price of Beyma and a little more expensive than the JBL2450's

thanks for the help!!