If you have 1st hand experience with one or more of the 4l80e aftermarket controllers out there I would like to hear your opinions. One of the things I noticed is TCI's TCU system comes with a floppy and no cd is available. I have not had a floppy drive in several years. Could by an external drive but the should have a CD. The Compushift unit of course has a controller available, which is nice. At least I think it is nice, never seen one. I am not to interested in hunting the junkyards for a diesel controller and all that goes along with it. Rather stay with aftermarket. Are there any other aftermarket ones I am missing? Are they truelly easy to set up? How much fine tuning will be required? Does either have a better base map? Thanks for the input. The 700r4's pump is knocking pretty bad, the 4l80e will be here middle of next week. Got to get the parts together so I can get the install done hopefully next weekend.