Thanks everyone for this really interesting forum - I enjoyed reading through the posts and appreciate the tone and expertise of the comments!

I myself left linksys firmware behind about one and a half years ago, after switching our telephone service to VOIP.
The QoS in the linksys firmware were not satisfying at all and looking for an alternative, I found tomato (I think it was 1.19 back then).
The main reason for my choice over dd-wrt or other flavors was the ability to return to the original firmware if anything went wrong.
Plus since I was new to all this (and still have sweaty fingers and some respect when it comes to installing new firmwares), I was afraid to brick my router with one of the wrt softwares.

End of story: I am extremely happy with my choice and will (hopefully never have to) return to linksys.
The only 2 times I unplugged my router was when we were moving houses.

I just upgraded to Tomato 1.24 and will see how that is treating me (1.23 worked like a charm.)

I have two questions:

1.)
Is it in general advised to reset the NVRAM (and adding all settings manually) after upgrading?

2.)
I am trying to understand the advantages of Victek's mod, but can't really find anything about that.
Everybody raves about it, but why would I want to install it in the first place?
I am (still and happily) using a WRT54Gv4 and always on the lookout for making my connections more efficient.
Could someone give me a short rundown or point in the right direction?

Thanks in advance ~