I've taken to making 36 & 48" lengths of T-14 with a braided loop on each end and using them the same way that I use the Beartooth Braided Lead Heads. The result is the same and I fish with a variety of lines none of which are Scandi or Skagit heads. If the whole idea is to get a fly deeper in the water all you have to do is some experimenting and you'll find a proper system.
I get my flies down, I don't spend a lot of time wondering if there was any hinging or other quirks in the cast. I focus on where I wanted to see that 'splat' of the fly landing and then I make it work from there. Almost 100% of the time I have either the T material or a lead head in the mid of my leader. The exception came when I started using those big Sculpin patterns with the weighted heads. In all but the extreme water I don't need the weighted leader when the fly has weight. For all the standard salmon type flies without weight the sections in the leader seem to get it done as far as depth goes. I don't want readers to think that I have no care about a nice cast but I am really all about where the fly lands and not how it looked when on the way there. Generally if it lands where I wanted it the cast probably looked pretty good.
I've never used a long piece of this T material but have tried fishing with 15' Hi Density sink tips which are about the same thing. Fishing was not fun that way, there was thrashing and splashing. There were more bad casts and pileups than good at some times; rather than to go to a totally different line system I just sat down and gave the problem some thought. Really, sat on a folding chair at my campsite and thought it out. I removed the sink tip, put on a 65' floating line with a 36" head in the middle of my leader. 6' of heavy mono for the butt - 36" head - 4' of 15 pound tippet and then I went back to fishing.
That was 2011, prior to that I was running with the herd. I had been using the lead heads with single hand rods since 1994, but this is Spey casting so I had to buy and do what everyone else was buying and doing. Now I enjoy fishing with my rods, even though the plan was to have just one and I ended up with 6, I use the same means to sink my leader & fly with every rod & line I own. Lucky for me there are very few 2 hand casters around so there is no one to tell me I'm doing this wrong
I am having fun with it and catching enough fish that I don't see any drastic changes coming style wise. Heck, it took until this season before I bought any of the T material, I figured I better have some so that people didn't think I am out of touch with things too much.
I don't know if any of that was relevant to this original post but it's too late now,