Attention Lowther lovers

Ok I am currently using a pair of DX3 Lowthers and AER Mk3 in a Lamhorn cbinet and I am enjoying both the Lowthers & AER. The presentation is completely different between the Lowthers & AER, agin I enjoy both.

My question revolves around the Lowther drivers, who has heard the difference between the DX4's, and the PM2A's, Or the PM5a's. I am looking for anyone who has heard or experienced the different between the DX4's or any PM2A's or PM5A's. I have already asked Jon @ Lowther for his take and he has already given me a detailed response. I am just looking for other experienced Lowther opinions.