Hi folks, I am looking for a way to do additive filtration enlarging. I have been using this Aristo VCL head with Blue and Green twin tubes at the local lab, and I am loving it. So, I started looking for an enlarger that will allow me to do Blue and Green split grade enlarging. And I feel like I am running in circles. Aristo doesn't seem to make VCL anymore, nor can I find any on-sale on ebay. I did run across the Philip PSC enlargers, like the PSC 130 or the PSC 2000. Are there any other choice? I think I would prefer not to do drop in filters, which as far as I can tell, won't give me an even spread of light. Please help. after using the VCL head, I don't really want to go back to using the subtractive filtration system. I love the fine control I can get with the additive split grade system. Thank you in advance.