car is an erst .

no smoke when idling or when started.
Blue smoke when revved from idle.
Blue smoke when accelerating hard or soft in any gear.
No puffs of smoke after boost .
Smoke just on boost.(especially on hard boost)
if i hold a high rev in any gear, say 4000 revs, it will pour blue smoke out constantly.

New valve seals.
turbo has very very slight play up and down and no oil in the boost pipes
bottom end is 1.8 zetec and holding 10bar compression in each cylinder.
decompression is not lowered at all too by the way...

any ideas?????