As soon as the twins get in I am considering a set of F1 nozzles. This has probably been beaten in the ground but what is the piston top looking like after say 200,000 miles. It seems our engines are somewhat sensitive to spray patterns because there are still those out there that are gun-shy to run these or any EDM injector. So what is the general consensus about running multi-hole injectors. It is obvious that the results on the Dyno are great but what about engine longetivity. I am sure that Don has done his homework but lets hear what the fellow members have to say. 
