Here is the list of parser bug candidates in order of priority, based on our votes - including Kim. The score is based on a Borda summation of the individual votes, where P1 gets 3 points, P2 gets 2 points, and P3 gets 1 point: CHECK SCORE DESC 4.2.3 14 {LEVEL 1} [Model] Vinl and Vinh enclose Vmeas 2.2 12 {LEVEL 0} Latest [IBIS ver] used 3.1.2 12 {LEVEL 0} [Package] Parasitics must be reasonable 4.3.2 12 {LEVEL 1} I-V tables have correct typ/min/max order 3.2.4 11 {OPTIONAL} [Pin] RLC complete 4.1.3 11 {LEVEL 0} [Model] C_comp is reasonable 4.2.13 11 {LEVEL 1} [Model Spec] S_Overshoot subparameters complete 4.3.10 11 {LEVEL 1} [Pulldown] I-V tables pass through zero/zero 4.3.11 11 {LEVEL 1} [Pullup] I-V tables pass through zero/zero 4.1.4 9 {LEVEL 1} [Model] C_comp is correct 4.2.7 9 {LEVEL 0} [Model Spec] Vinl+/Vinh+ greater than Vinl-/Vinh- 4.2.8 9 {LEVEL 1} [Model Spec] Vinl+/- and Vinh+/- enclose Vmeas 4.3.4 9 {LEVEL 1} [Pullup] voltage sweep range is correct 3.3.2 8 {LEVEL 0} [Diff Pin] Vdiff and Tskew complete and reasonable 4.2.15 8 {LEVEL 1} [Model Spec] S_Overshoot subparameters track typ/min/max 4.3.5 8 {LEVEL 1} [Pulldown] voltage sweep range is correct 2.3 6 {LEVEL 0} Do not use [Comment Char] 4.2.12 6 {LEVEL 1} [Model Spec] Pulse_time reasonable 4.3.6 6 {LEVEL 1} [Power Clamp] voltage sweep range is correct 4.3.7 6 {LEVEL 1} [GND Clamp] voltage sweep range is correct Mike