your best off talking to stu as he will know what idle strategy he has given you pal,

your best off ringing him and giving him your chip id number,

one thing is for sure though, at cruise in closed loop, you should be around 14.7, the figure will wonder off slightly, but will stick around that fig if your car is going into closed loop correctly.

you will find off the shelf chips are mapped to be safe, so being rich on full boost may be completly normal, as heading closer to peak power could be quite dangerous without the correct monitoring equipment.