fair play lad. ied be interested to hear what readings yer getting on your gauge. mine shows the boost going up to just below 1bar then it drops for a second cause of the vod then back up to just under 1 bar again. from what i could see on saturday my gauge is teed into hose 12. on further investigation at the solinoid box this hose was loose on the little nipple on the outside of the box so i cut it back about 5 mm and reconnected it and ive noticed my boost is a little smoother.
so stick up a few pics when ye get sorted