So apparently I bought 2011 rear struts last year and forgot about them. Then this spring I bought all four 2009 struts (used fronts, new rears). I am planning on swapping springs out with RCE blacks. Kinda want to keep stock struts. But I'm toying with the idea of Koni Yellows in the front. The stock rears seem fine yet, but the front seem soft. So, I'm thinking Koni's in the front might last longer. Don't need anything special for rear struts. Here it is... Do I just put the 09 fronts on as is? Do I pair them with 09 or 11 rears? Keeping in mind I'm thinking of going to RCE blacks. Then... would I be better off with Koni yellows in my 09 donors. I don't have a huge budget for this. Springs are it. Koni fronts would break the budget. All 4 Koni's, and I'd keep my current SPT pink springs.