New to truggy's - and not real impressed so far

[JThiessen]

Some of you may know that I recently converted an 8T 1.0 using the Tekno kit (long shank pinion set up). I pulled the MMM/Neu 1515 2.5D out of the Revo to use in it, running it on 5S Neu 4900.
I'm geared at 16/47
Center Diff is now fresh with 50K - I havent pulled the front or rear yet.
I had it out for a few minutes last night to just run it up and down the street to get a feel for the gearing and check temps.
Anyway, I'm less than impressed with the off the line pop, acceleration, and overall feeling of speed. This is in comparison to the way my Revo ran with the same motor, my Flux (maybe not a fair comparison), and my past Maxx's and other rigs.
I dont recall what my settings on the MMM were - but I know I have never turned down the punch control more than 10 to 20%.

Is this "normal" for a truggy? What steps does one take to give it that "out of control" acceleration feeling that we are all so attracted to? I assume that going up in diff oil weight is the only mechanical tuning solution - besides gearing. BTW, with the Tekno set up, and the 47 tooth spur, it looks like 14 or 15 is the smallest pinion I can run - my 13 wouldnt engage. I do have a 48T Robison spur that I can put on there also....