i've intentionally stopped insulin for a few cycles at my vet's request when he thought alex might be over dose. it didn't pan out the way my vet thought it would and i resumed insulin at the same dose. i've also skipped a shot here and there when i felt there was too much "depot" action remaining after taking a dose reduction, but i don't think that's what you're asking.
withholding lantus for approximately 3 days to *see* where kitty is at was a technique used by some prior to widespread acceptance of the Tight Regulation Protocol with Lantus or Levemir on the FDMB. if the TR protocol currently followed by most in the Lantus TR ISG is properly followed from the start (using the dosing guidelines suggested in the TR protocol), there's really no reason to check to see if kitty might be over dose. the TR protocol offers a very systematic and methodical approach to dosing.
this technique is not to be confused with what carl mentioned as a "reset". imho, a "reset" is when there's already a strong suspicion of kitty being over dose... usually due to any combination or all of these things: the initial starting dose was set too high, subsequent dose adjustments were made early on in increments greater than 0.25u or 0.5u (lantus/levemir) and/or there have been missed reductions... usually more than one. under those circumstances, there have been some lantus/lev users who have *reset* at a much lower dose.
