Obsidian plinth dust cover adjustment

Dear chakster, I lost any hope when our encyclopedic member 
from Russian Federation was silent. One should not believe in
miracles or omniscient persons. Thanks for your specific advice
but I don't need one more  couple of those Obsidian hinge(grin).
Dear best-groove, When I purchased Technics SL 1000,mk2 
there was no user manual included. Despite of this I improved
the Obsidian plinth by removing its mediocre feet and provided 
with Technics pneumatic ''towers''. I was then very proud of myself. That was also the reason why I waited so long to ask for help...
Thanks for your ''input''. 

and provided
with Technics pneumatic ''towers''

what towers are they?

Dear best-groove , This question can be better answered by
our ''omniscient chakster''. Besides he own the biggest of
those ''towers''.

@nandric

ok ok ok I already understood everything ... they are the usual and nowhere to be found Audio Technica 616

Dear best-groove, chakster like the most of us need to sell some
of his possessions in order to be able to buy some other .
Well his previous advice to me was to buy his ''bigger towers'' 
and get rid of my ( lesser kind?) . This way you can get my AT 616
while I can get chakster's  ''big guns''. So everybody wins(?).