Were Jems actually produced every year or only in batches?
Like the title says, were various Jems actually produced in every year that they were sold? I ask this because it seems like the ones I see for sale are usually from the same years. Several examples:
FP - I see a lot of 88's for sale but almost never an 89 or 90. I actually had an 89 that was a complete beater, but I've seen few if any since.
DY - Again, where are the 89 and 90 models? I see 87's and 88's and then Lo-Pro models.
GMC - These were sold in 92 and 93, yet every one I've seen has a 91 serial number. My assumption is that they built all 366 of them in a giant lot near the end of 1991 and then sold them until they were gone, which took two years.
1989 and 1990 in particular seem to be huge holes in the production of certain guitars. My PBK has an 89 serial, but that makes sense because that's when they entered production. I had a VBK with a 90 serial as well.