Altho i like the kaminari, If they had a good 90-93 TT flush mount spoiler that was not a hassle to mount I would totally go 90-93. Look at the kaminari from behind and it has a bigger arch to it and the points that it curves really throw the whole back look off. Here you can see what im talking about on Seedy's car. Its straigth and goes across very nicely, while the Kaminari curves upward.
From the back the Kaminari really doesn't look as good as the 90-93. Kaminari looks very nice when you have a rear velance since the whole back end matches. Without a rear valance when you put a kaminari on it makes the top unproportioned. Anyways thats what i think.