Dave, Really solid progress there. That usually happens with a sticking point then once over it you will grow again for some time. Just make sure if you are growing on this routine to change it up in around 8-10 weeks time. doesn't have to be routine just change exercises.
Also remember rest periods and sleep are just as important (you know all this so i will shut up now and go apply some of that to myself
)
Anyway keep it up and eat big:beer1:
Colin