A few follow on questions though:
1. Does the shaker make that much of a difference?
2. Should I upgrade the speakers and if so, which set should I buy?
3. Can I add the mantis arcade hole protector AND the cliffy protector?
4. Are the pinbits protectors good to have?
5. Since I'll have several mods that require power connections, which splitter is the best to get?
6. Read about the PIG. Is it worth getting?
1) I think the shaker is awesome in Tron, very well integration into the game (I've got mine set on maximum). It's very cool.
2) I have the Flipper Fidelity speakers and they definitely make a big difference over the stock ones. A lot of guys leave the stock speakers in a hook up an external sub, and that's cool to do as well (I've also tried both and it's crazy in terms of the overall sound). I'd recommend to upgrade the speakers as I think it's definitely worth it.
3) If you've got the Cliffy you're good to go, you won't need to put in a mantis as well (so just the Cliffy will suffice).
4) I've installed the pinbits protectors and I think they look great (and to also protect the plastics).
5) Doesn't really matter which splitter you get, they are all the same (ie. they'll do the same job). Below is the one that Kim from Kimalls Pinballs made for me.
6)PIG is cool, I ordered one but haven't put it in yet.
splitter.JPG