JB4 vs COBB AP power delivery, output, etc

Could someone please educate me and others on the difference in power delivery & output between the JB4 or piggy vs COBB; so its my understanding that COBB maps adjust fueling, timing and load target for DME to up the boost to generate higher than stock power, while JB4 will trick the DME thinking its targeting higher loads and loop this until desired boost is reached........soooo....my butt dyno and others have noted that JB4 G5 feels faster and delivers more power to the wheels on map2 or map 5 at 14 to 15 psi vs 18.5 PSI on Cobb Stage2+FMIC aggressive, so i am wondering whats the deal ? is the timing associated with jb4 maps that ask for higher loads that advanced vs cobb maps that control actual timing?
JB4 also feels more intense or you can say COBB feels more smooth.

please elaborate.