Great progress Josh  

*Ive found the McGill Pull Up method is an excellent way for anyone to progress in Chins/Pull ups, using one of those door pull up bar contraptions at home.
Once or twice a week 
eg 4 week progression.
Week 1) 6-8 rep set ( 30 sec rest inbetween each rep ) 
Week 2)  8-10 rep set (30 sec rest inbetween each rep) 
Week 3) 10-15 rep set (30 sec rest inbetween each rep) 
Week 4)  Test - AMRAP