However, with extensive use, a good bat's performance will get even better and ball will rebound faster off the bat face
The above is exactly what I was looking to understand. Perhaps it's psychological, perhaps it's a bat opening up. Wondering how long the above takes on an average..
I don't think you can look at an 'average' time mate.
Couple of things from my point of view. I've made a bit of an assumption that with only small use of your bats, you can't justify sending hundreds of pounds/dollars for top grade bats. Apologies if this is wrong.
1. Time20 or so minutes, without hitting a lot of balls, isn't very much time.
I got a new stick this season, which was top grade willow, which still took a good 10 training sessions of about 20mins to get it to begin "opening up" properly (that's about 1000 deliveries + time in the middle as well).
Like ProCricket said, after about half a season, most bats are the same. But, my 'half a season' of 20+min net sessions for three months, plus time in the middle will be much more than your 3mths of up to 20mins in the middle. Times dependant on use.
2. Timber qualityThis year is the first time i've had a 'Players Grade' bat and i have to say, the quality of timber makes a huge difference for me.
I have natural bats so don't use them on the bowling machine. Using one of my old grade 2 bats when on the bowling machine the other week, it's a plank in comparison.
3. ProfileThere have been plenty of threads on here about profile. I've gone back to a proper 'full profile' with no concaving. While you don't get as big an edge, as a player that tries to time the ball, having as much timber in the middle or just off centre makes all the difference.