Vitamin C and baby oil, tune away all you want, but no matter what you use, if you over-do it, you get a really mushy rubber that performs worse than when you started. Get a pile of discarded rubbers and train away.
We have had the debate a gazillion times on forums about if it is lawful or moral right to tune or not to tune.
The guiding principle is unfair advantage, but on hte keep it real side, if a factory does such and such to one rubber, and you do the same thing the same way to the same rubber, it is an obvious conflict of rules and moral thought.
Myself, if you are my opponent in a tourney, you can tune away all you want with you H3 and make it HOT to give you same advantages as someone who bought H3 national tuned from factory handshake. I want give a rats arse. Tuning will not help you read my serves, but it will help your loop if you can get past them. it is just good training for me. If you are within 1 level of me, you do not have hte technical ability to make too much of hte tuning anywayz, you would have too many flaws in your game a NON-Brain Dead player or coach already could see.
If I was an umpire officiating your match, all I could do would huff and puff (thanks ttmonster !!) as the bats are supposed to be tested for legality by officals at control station BEFORE the match and brought out by an official... if it was a properly run big time tourney. LIKELY, you will just see me suddenly volunteer to umpire the finals of your regional or local tourney I am playing in and have been eliminated already... and those do not have testing for the most part.