Challenge: Dwarf rocket, fat rocket

[Rocketeer]

Build the fastest possible rocket by having at most one stack of engines or tanks. You will have to extend your stages radially rather than vertically. You can add at most one LFE+ one LFT from the bottom of radially coupled SRBs. You can extend the rocket by sticking more SRBs to the new LFTs or radially to existing SRBs.

Only stock parts are allowed for either version 0.8.5 or 0.9 experimental.

Example: http://i.imgur.com/m00qC.png

[shdwcaster]

Here's my attempt. It's a slideshow until the last two stages, so there's enough SAS on it to ensure that it tracks true vertically until I can have a chance to control it. Top observed speed 3732.8 m/s.

As an aside, this is the first truly silly rocket I've done in 0.9, and I have to say that without straps, this thing would have exploded/fallen apart/both.