Need feedback about a script

[Chainmax]

I am in the process of cleaning up some very awful VHS captures for later transcoding to low resolution DVD. I think I've gotten some nice results with my current filterchain, but I'd like to know how would some of the more critical eyes around here think about it. A clip from the source file can be downloaded from here (http://www.31012.com/~azulftp/VA3_PP_Intro_NS.avi) and the script I came up with so far is this one:

ConvertToYV12()
Levels(0,1.3,255,0,255)
FunkyDeblock(th=4)
Crop(0,0,384,282,align=true)
HybridFuPP(352,288,MP_Mode=1,dering=true,E_Str_X=50,E_Str_Y=50)
AddGrain(2,0,0)
AssumeFPS(25)

[Chainmax]

An m2v made with this script can be downloaded from here (http://www.31012.com/~azulftp/VeranoAzul_Script2.m2v).