So I'll chime in, but my shackles are a bit shorter.
SOA, stock YJ springs, extra main leaf in the rear.
1" longer-than-stock heavy-duty shackles, 5" center-to center, so 1/2" lift.
1" body lift, TJ flares, 35s.
I think it's the perfect combo. She flexes great and doesn't rub the body too bad when flexed. I suppose you could run longer shackles, but the rear driveshaft angle is pretty tight as it is, and longer shackles up front will hurt your approach angle.
SOA, 8.8 locked, 30 w/95 shafts locked, SYE CV, weber, GM HEI, OBA, BL+TT, TJ flares, SW Talon 12.5K, 35s = Wheeling Jeep.
Laredo, 104K, sunroof, 4.0, selectrac, 3" IRO +10mm, adj trac bar, 265-75-16s Goodyear = DD & Expedition Jeep.