BG Tweak Pack. How far do you take it?

Hey guys, I have finally decided to start modding the game a little bit and I really had no idea how deep the changes could go. I want to have a legit BG experience and I don't want to add any cheese to the game as I already find it easy enough without SCS. I am trying to figure out what the standard is for a normal game of BG. I will list a few things below to see what you guys think about them and how they effect the game.

1. Un-Nerfed Thac0 Table
2. Multi-Class Grand Mastery
3. Removing Racial Restrictions for Classes
4. Human or Any Race Multi-Classing

Those are the main four that I am curious about, and want to know if any of you guys play with these modifications to your game.

Is there anyone out there that thinks that allowing Human Multi-Class is true to the BG version of AD&D 2nd Ed.?

Will Un-Nerfed Thac0 and Multi-Class Grand Mastery make the game too easy at the ToB level?

I appreciate everyone who takes the time to comment on this topic. It really means a lot to me as I truly value the opinions of all of you on this forum. If there are some taboo changes in the BG Tweak Pack that I need to be staying away from, I would really like to know about it. Also I know some of you are going to say, "Play the game the way that you want to play it.". I understand that and respect that, but I have more of a desire to play the game the way the community at large believes is the correct way to play the game to get maximum enjoyment out of it while also getting the authentic BG AD&D 2nd Ed. experience.

Thanks guys. Have fun and as always, have an awesome day.