a friend gave me a shallow body celebrity...and the action, and intonation sucked. totally. so i emailed tech support at ovation..
they asked what kind of strings i used...i told them an extra lite set...they said to try a medium set with an .012 for the skinny e.
that DID help....a little bit..but not enough. so i went guh-googling, and discovered the thing about the shims, and decided to have a look. so i did...and there WERE no shims. the action plainly was too high, so i said screw it...in for a dollar, in for a dime.
i pulled the bridge saddle out, and loaded up a sanding block with some medium grit sandpaper, and rubbed that puppy back and forth until i took off about 3/32nds of an inch off the bottom, where it makes contact with the transducer..
(i don't reccomend this to anyone, but i personally have little ethical problem with guerilla guitar tech, lol)
worked out perfectly, the thing has a playable action now, and the tone has improved even...and the intonation is definitely close enough for rock n roll.
took a poor guitar and made it quite nice.
if you're crazy enough to try my madness, remember to go slow, and keep checking it as ya go...make sure the bottom is flat!!!!!
and remember, it's wayyyyyyyyyyyyyyyyyy easier to take off too much than too little.
back to your regularly scheduled programming...