I have the
SCM FS 30 G with Tersa knives and couldn't be happier with it. When I ordered it, the Tersa knife version was in stock at the distributor's warehouse with a two-day delivery. If I wanted the Xylent version (spiral carbide cutters), the lead time was six to eight months. The cost of the Xylent version was about 750 Euros more than the Tersa version.
I would have been happy with the Hammer A3 31 if I could have found one, but in my experience, Felder is not hobbyist friendly. I started down the Felder/Hammer path when I was shopping for a sliding saw. The lead time for the K3 Basic was 90-120 days after full payment and I had to make my own arrangements for transportation, installation, and commissioning. Instead, I bought the
SCM SC2C saw from a local distributor. The delivery time was one week and the price included delivery, installation, and commissioning. The price was about the same as the K3.
I know the spiral and helical versions of the combination machines are all the rage in the US, but in Germany I have never seen one in use. All of the professional shops I visited over the past 15 years use the Tersa knives because they are less expensive than a set of carbide cutters, easy and fast to change, and don't require any adjustment. I can change the three knives in my machine and be operational in just under one minute.
The FS 30 G is the smaller version of the FS 30 C and is perfect for my basement shop. When not in use, it fits in the corner at the end of my mitersaw workstation. My version doesn't have a mobility kit, so I made my own using commonly available material from the local hardware store.
Regardless of which machine you buy, you will likely need a robust chip/dust extractor. I can fill a 35-gallon collection bin in about ten minutes when I'm processing a lot of lumber.