It seems like they are.
With all the modding and using stock modules as donors, it seems like the non signature, stock modules are showing up less and less on eBay or in the classifieds. I recently bought a stock black faced Deluxe because I had the original one modded and have my feelers out for an SL+ (I had two and had them both modded). You used to see SL+ modules all the time but not anymore. I think that both of those modules are great out of the box and are two of my favorite stock modules (Dlx and Sl+). I figured I better get them now because they will be getting harder and harder to find. I've been into MTS since just before the Lynch stuff came out and still plan to continue to keep my mts for years to come!
With all the modding and using stock modules as donors, it seems like the non signature, stock modules are showing up less and less on eBay or in the classifieds. I recently bought a stock black faced Deluxe because I had the original one modded and have my feelers out for an SL+ (I had two and had them both modded). You used to see SL+ modules all the time but not anymore. I think that both of those modules are great out of the box and are two of my favorite stock modules (Dlx and Sl+). I figured I better get them now because they will be getting harder and harder to find. I've been into MTS since just before the Lynch stuff came out and still plan to continue to keep my mts for years to come!