The Silvertip showed perfectly adequate results. Good penetration and expansion and, although the weight retention wasn't perfect, it was very high. The not-exactly-nookular power level is a positive thing for defense, I think. Remember that pistol cartridges don't produce enough TSC for it to be a significant wounding factor. The only things important to pistol wounding are penetration and expansion.
The MT Gold bullet may not be a premium bonded defense bullet but I think it performed adequately in my own admittedly unscientific tests. I think 10mm velocity makes up for shortcomings in bullet design to some extent.