First i'd like to thank John Krutke for all his work, interesting designs and contribution to diy community.
I tried building SB12.3 recently and very pleased with them. Now i'd like to explore more of Zaph kits and SR71 was the next logical choice.

While i'm going to order stock kit with crossover+drivers, i'd really like to try building my own custom box for it. I won't change internal volume or driver spacing of course, but wanted to try a different shape, like this for example:
Is there anything i should worry about in this case?

Also, can anything (bad) happen to tweeter performance if baffle shape is changed to something like this - ? And how critical is the baffle width here anyway?