I currently have the 2003 Giant NRS 3 XTC, and am slowly converting it to more of an all mountain bike that i can take bigger hits with. I currenty putting new rims and tires as well as a new five inch front shock. The only problem is I weigh 190 and when i put enought air in the rear shock to take some bigger drops and jumps it turns really stiff on the trail, I was wondering if there was any tail shock that i could replace it with to give me more travel????