First off, here's a part of the sticky about IAS tables by JRichard:
Dragon Talon Initial Kick EIAS Table:
EIAS Fpa
-30 18
-27 17
-23 16
-18 15
-13 14
-7 13
0 12
9 11
19 10
31 9
45 8
63 7
Since you want to reach the final break point, you'll need to acheive 63 EIAS.
Take note that IAS on gear and EIAS aren't the same.
EIAS is the sum of your weapon's base speed + Speed granted by skills (Burst or Fanaticism, or both of 'em) + the result of the conversion formula for gear IAS.
In all, you need to know 3 factors. IAS on gear, Base weapon speed and sum of skills.
In your case, you won't use BoS. So the third part is only based on Fanaticism. At level 9, the increase in speed is 29.
Now we need to convert the gear's IAS into EIAS using this formula.
EIAS = (120*IAS) / (120+IAS)
If you don't have any other sources of IAS beside the 40% on your weapon, the formula will look like :
EIAS = (120 * 40) / (120 + 40)
EIAS = 4 800 / 160
EIAS = 30
Add your skill speed (Fanaticism)
30 + 29 = 59
At this point, you can see that you are 4 points off to reach the final BP (EIAS of 63).
Now the last thing you need to add to the formula is substrac your base weapon speed.
59 - (weapon's base speed)
Don't forget that if you substrac a negative value, you'll have to add it.
So if your weapon have -10 base speed, the formula will be :
59 - (-10) =
59 + 10 = 69
So with a -10 weapon, you will reach the final BP. Which you won't if you are using a 0 or slower weapon. there is only 9 weapons that will allow you to make a beast out of it that gets -10 speed and at least 5 sockets. War Scepter / Divine Scepter / Cadeceus, Millitary Pick / Crowbill / Warpike, and the 2 handed : Great Axe / Gothic Axe / Champion Axe.
Some could suggest to build your Beast into a scepter with +3 Fanaticism to reach level 12 right off the weapon. I'm not sure this actualy works but even tho it would, be aware that all the 5os scepters have a base speed of -10 so you'll only gain in damages, as the last BP will already be reached.
Hope this helped you.
** EDIT **
Take note that if you were planing to use a weapon with 0 speed (like a berserker axe) you'd only need 10% IAS on your gear to reach the final BP.
(120 * 50) / (120 + 50) =
6 000 / 170 = 35,29411......
35 + 29 (Fanaticism) = 64