I have been using a sa1000 and sa20 combo now for 3 yrs after sending them to Mike for the basic upgrades.Prior to these,I had a sa 3000 and sa12,both stock,bought in 1988.I never had any problems,plus Mike is so prompt and professional when it comes to advice and service.So I recommend either product,though I have not heard those 2.Hope this helps,good luck in your venture,Bob
