Dimitrov back to 18/17 pattern but on a new racket

Grigor Dimitrov has been exploring different rackets and different setups lately to improve his game. After his convincing win over Nishioka at round 1 of Brisbane 2019, it was apparent that he made some changes in the offseason again and that it might be working very well. Maybe the changes came because of the influence of a new coach Andre Agassi?
 
Take a look at the Evolution of his racket during the past year.
 
I’ll be looking forward to more tests for Dimitrov especially at the Australian open 2019.