My biscuit joiner had a couple of hours out of the box within the first day after I brought it home. I recall joining all manner of scraps to other scraps and then I put it back in the box to await a project to biscuit join.
I can't even recall how many years have passed since those first trial biscuits, but this morning, I decided to start thinking about gluing up a new top for my workbench and it occurred to me that the biscuit joiner might be an option to consider.
While browsing for information on biscuit joiners to refresh my memory on how and where to use them, I stumbled upon several references to problems getting the P-C 557 to register. Upon further reading I discovered that the problem apparently came about because of a patent dispute and P-C had to change the fence from the original Type I setup and Type 2 was the response to the patent case. Problem was that the Type 2 change made the tool less than accurate for some rarely used joints. I didn't recall the "Type" of my biscuit joiner (the problem was apparently fixed for Type 3 and beyond), but since I was on the web site, I read about a fix for the Type 2 registering problem.
It took a while to finally track down down the shim fix, but I did and with that information in hand, I set out to determine whether my biscuit joiner was Type 2 or either the earlier or later models without the registering problem.
Out to the shop and up the attic stairs I went to retrieve my joiner. As it turned out, it wasn't a type 1,2, 3 or 4. If fact, it is a Dewalt 682K. Not remembering what you bought seems to break new ground for minimal useage.