You should always try to match your spring rates with your shocks and sway rate tuning. We spend a lot of time tuning our suspension and our shocks work great with Firm Feel's 1.06 T-Bars. The spring should be what holds the car up and keeps the suspension from bottoming out, the shock should control that motion. I believe there are no shocks on the market as dialed in for a specific rate and ratio as ours.