Problem with scaling in Illustrator
I am trying to scale up this logo. But everytime i do (by dragging bounding box and holding down shift), it seems a few elements do not scale up by the same proportions as other elements. This leaves me with elements having moved out of position/gaps where there were none (see images below).
I've tried grouping all elements first, and ungrouping, and ive tried putting all elements on their own layer. None of this worked. Please help.
ps. i know i could rasterise etc but i want to keep it all easily editable 
{Renamed by MOD}

