Smart Carb vs Lectron vs RB-Designs Mod

[AZRickD]

A non-riding vacation next week gives me a window of opportunity.

I can either send my 2011 250's AS2 carb to Ron for his RB carb mod for $167, or to go with APT Smart Carb (cast version) for $375,
or the Lectron $315 (me thinks).

Which way would you go iffin you were me?

I have had RB mods on both my KDX220 and my '05 DE250 with fine results.

Also, RB's mod has a bore increase from 38 to 39. My riding style dictates that I won't use any more top end, as I prefer more bottom. I'm actually thinking of adding the reed spacer from my other bike (and removing the boot spacer thingy to make room, if need be).