I have never seen an Armortec 9000 Power. While comparing Z-Slash and AT900P, I would say the AT900P is easier to smash with because of the larger sweet spot. You can generate a more powerful smash with the Z-Slash though, provided that you can hit the small sweet spot consistently, which is hard to get used to. The Z-Slash is also harder to defend with, for the moment. I have both racquets, strung to 27-28lbs.
I use NBG95 on the Z-Slash and BG66 Sharp on the AT900P. They feel similar in terms of stiffness, although the BG66 Sharp feels "sharper".
I have a Arc Z myself and i have to say i kinda agree totally what Blitzzards said above. In fact am "VERY Tempted" to get a AT900T (not P) after i tried my fellow baddies' AT900T....So much better to get used to and the overall play is so solid. But i am not giving up yet on my Arc Z....
Both, try them out, but it all depend on the technique u use for smash , if you have the right technique and have a fast swing then the Arc Z will be more rewarding. dont take my word for it , try it out for yourself !
Armortech 9000 Power = fake Armortec 9000 Power = fake mis-spell title is amended to clear the confusion. thanks.
AT900P is a very weird racquet to use.....Stiff and the weight is like right on the shaft instead of the head. Never tried the Arc-ZS myself, but I would think that it's not the racquet for me.
The AT900P is actually a very interesting Armortec series racquet IMHO. I have been using one lately and actually feel pretty defensive or counter attack-ish with it. I guess it is due the feel that you mentioned; the feel at the frame tip is pretty soft meaning that I can get quite decent control and hold with shuttle placement especially at the net, while the Elastic Ti Gummetal at the frame bottom has very good repulsion which allows me to smash with the promised raw power.