Well - it may be opinion or it could be fact - but PPP IMO is the best shifter you can buy. Apparently about 95% of the money is no object racers agree. Add in that PPP has never, not once, had a shifter returned due to a defect or malfunction and that is pretty good testimant to the quality and performance.

Whether you are pushing or pulling - it is impossible to inadvertantly mis-shift. Now - push-pull - it is all personal preference.