Why? Apart from having a core fighter (sorry, core splendor), it doesn't seem any more complex than most other Mobile Suits. In fact it's a great deal simpler than many MS like the Ex-S or Zeta/Z-Plus for example.
I can't see why it would be any more difficult to design or build than other MG or PG kits. Both the MG and PG RX-78 and GP-01 have Core Fighters.
Even in it's three seperate components, there's nothing really special going on with Impulse. For the lower section, all the legs do is bend at the kness and the front and rear foot halves close up. Nothing mind-bogglingly complex there. For the top section, all the arms need to is raise above the head and bend at the elbow IIRC.
Graham
Yeah I was thinking abot the core fighter. From what I see in the pictures, PGs or MGs are just for the most part a one piece skeleton. I was afraid that the three piece transformation would be a problem to design.
BTW Blast and Sword Impulse rules over launcher and Sword Strike anyday. The only thing I like about Strike is the Aile Pack. That is way better looking than the Impulse.