Something I noticed regarding grip regardless of how I grip the club at address... with standard size grips I tend to regrip the club and close the club face during my swing. With midsize grips I do not.
The high approaches is more about being able to use a full or near full swing for me. Find it harder distance control on half swing but I am still experimenting. I am actually currently trying to convert to a chip and runner. I even removed my lob wedge from my bag. Dispersion wise left to right is probably a bit better and distance a bit worse. I must say its a booring defensive shot but safer for sure. That said to simple shots I sometimes miss due to underestimating them. Its ridiculous how you can miss the simplest pitches sometimes. A full shot with my 50/56 wedges do require my full attention.