I didn't see this post previously.
Gege, you will find among experienced GT anglers that many have tried SMP but I do not any that have continued using it. I personally do not like the line based on my experience from when the line first came out. I found it had very poor shock loading and was prone to inexplicable breakages. The line may have improved but my initial experience was enough for me - no thank you.
I have been on Paulus' site before and he seems to provide a useful service for anyone willing to provide him with line but I don't know anyone who has used the Tasline.