if it`s only about the weight you can ask the distributor to send you one on the heavy side. there are new ones also with 94g and more and you can glue your rubbers with 4-6 layers of glue e.g. Revolution No.3 glue is perfect for that. this would add another 10-12g in total.
https://www.tabletennisdaily.com/equipment/reviews/user/33621
there you go
i actually made a mistake regarding the composition. i think the second wood layer is spruce and not ayous.
you would need to ask the cooks in the CNT training center about that. or FZD personally to confirm that. i guess its a mix of different tastes. one could not eat such amounts of the same one thing every day.
horse sounds reasonable though.
if you worry about the quality consistency of your rubbers what you can do is to weigh them which a digital kitchen scale or else. the closer the weight of 2 of the same v>15 extra for example the less difference between them
i can only reply to one of your questions, how to reboost, if your location is germany i suggest you the dymax maximizer booster which is easy to get in germany over a few online shops and which is said to be the ``Dima booster``.
https://www.youtube.com/watch?v=WsbezFVXePs&list=PL2GIg1TWe9kKWNiT_BfTdSuc3TOzZt4qS&index=2&t=0s
watch in 0.25 speed. very good for observation. ofcourse keep in mind this technique is only for incoming underspin push