I'm waiting to see what happends with my job. I'm debt free now don't want to jump into a payment with out haveing job security. I hate being responsible. There's a popo dealer a half mile from my house I drive past every day last week they put a 2012 Polaris 550 X2 with a plow and xp wheels in the frount window I sware the bastards are taunting me. Lol
You will really notice it on the bottom end. Haven't had enough time to ride it to see what is on the top end and to be honest I don't care about what at the top anyways. Are you running larger tires? If not, it's really going to kick in when the clutch engages.
I ended up with the sport utility (non-EBS). It came with a red primary, purple secondary, billet helix and 47g billet weights. I hated the engagement with the red spring as it was near 2800 RPMS, so I ended up buying a gold and now it's perfect.
Just a thought, you could try just changing out your primary spring to an EPI gold or red. You can usually get them for $25 on amazon. Red will increase your engagement600-800, gold 300-400. Gives you a little extra pop to get the heavier tires spinning.