OG Bounce Mushroom Bubbles/Vesicles

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Any OG bounce owners could help give me insight, so I got this shroom about a year ago November 20th (see picture) to be exact..
How do these bounces/bubbles look on this after a year?? I fear that the bubbles are so small compared to others, I mean most of them are a no bigger than 1mm except the bigger one in the middle? The mushroom right now is an inch in diameter. Maybe some things I've done to the tank has stunted its growth but other shrooms that ive had longer has gotten so much better over the time and they have seen the worst.
Could I have some hope that these bubbles will get bigger? I know it's still fairly young, or is it? 1 year of growth? is that bad??

1st piicture was listing picture when it was sale
2nd is when I placed it in my tank (November 20th)
3rd is this week

 

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I will note that this was a baby from pedal laceration, not sure if that comes into part. I know most OG owners have some that were cut from a mother and grown out.