Caladan by Clayton Shaw DIY

I really doubt the Dayton tweeter is capable of that without having significant distortion down low at the crossover point. I would personally use a deep waveguide to obtain that waveguide gain to push the distortion lower. Augerpro has an 8 inch waveguide for this specific tweeter which can also help time align to the woofers as well.
 
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you could drive a ferrari on a dirt road, but that doesnt make it a good idea ;)
power handling will be cut also. for example over here, simply lowering a d220ti from 1500 to 1200 LR2 on a jbl pt (using a dsp) significantly increased the number of broken diaphragms.