how to reduce friction in dog-harness-belt virtually *impossible* to lengthen?

There's at least (I think) several types of around-the-chest dog around-the-chest-and-neck harnesss.
The way mine (well, my dog's) works, for adjusting the fit, is the belt-like material feeds through a little plastic buckle or whatever it's called, doubling back on itself, via a *very* tight fit.
Even when new, it's a bear to force a bit of the belt up through it a bit, forming a wee loop barely large enough for a tong (?) of "fine" needle-nose pliers into it, so that with that you can pull a bit of the belt through it, and pull down the other hole's part -- I guess you have to see it to understand it.
ANYWAY -- once the harness gets a bit used, pushing and pulling the belt through that buckle-thing becomes, well, virtually *impossible*. Apparently wedged in, stuck tight.
QUESTION: what can you do to make it slide easier? Probably not eg 3-in-1 ie petroleum-based oil, I suppose.
Ideas?
For those who have this same kind of harness for their dogs, how do YOU adjust the size?
(Reason I need adjust the size: small dog (bichon), one month or sometimes more between haircuts, outward-thickness of "coat" is *so* much less after a haircut (gets a "puppy cut") that if not shortened he can get his front legs out of the around-the-chest part of the harness.
I've decided to buy another harness, and adjust it for apres-haircut, and the other for just before haircut. But the current one is just *impossible* to adjust.
Thus my problem.)
THANKS SO MUCH!
David
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On 12 Oct 2007 20:01:32 -0400, snipped-for-privacy@panix.com (David Combs) wrote:
-snip-

Can't help on your old harness- but if you're buying one anyway, I love the 'Yuppy Puppy' harness [Walmart about $10] for my Pug- http://www.epinions.com/content_145682632324
Jim
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