The EBL vs. 16197427 using an Ostrich 2.0 are equivalent (no chips), upload / download a tune with TunerPro RT.

The EBL offers Auto Tuning.

The 16197427 does not Auto Tune.

Tuning the 16197427 with TrimAylzer: http://fbodytech.com/trimalyzer/trimalyzer-download/ is a good (low cost) tuning option.

dave w