haha. As a rule, I never change colors once I start the solve, it's just faster for me to finish what I've started than calculate which color would be more efficient once the solve has begun. I would have used that pre-existing pair to build an xcross like this:
Scramble: L2 D L2 F2 D L2 F2 U F2 U2 R2 F R' F2 L' B2 U' B L2 B2 D'
x' B2 U L2 y' R U' R' F U2 y R // Xcross
U R U' R' U' R // 2nd pair
U' L' U' L U y L U' L' // 3rd pair
U2 L' U' L U' //4th pair
L F' L2 U' L U F // VHLS
y2 R' U' R F R2 D' R U R' D R2 U' F' //COLL and EPLL skip
watch here:
48 htm
didn't time myself, but I did it like a normal speedsolve (didn't really think about my moves past what I could plan in inspection.)