I contacted a Talon rep prior to buying my 10's. The 10 footers are in a shorter case than the 8 footers. I guess the 8 footers are a 2 phase deploy where as the 10 and 12 footers are a 3 phase. My 10's are just about even with the top of the motor when it is trimmed down. They may be 2 inches taller... I beleive the 12's will be a good bit taller though. This is why I went with 10's.... and have been very happy!