It’s all about the linear density (gr/ft) of the tip you use. T8 is 8 gr/ft (hence the name) but you could also get approximately the same sink rate (s6, 6 ips) as T8 with #5,6,7 Rio
Replacement tips (5.5,6.5,7.5 gr/ft respectively). Those are very similar to “t-tips” - are almost level tips but have different diameters with different amounts of tungsten per unit volume. They also come (for some weights) in s8, equivalent in sink rate to t11 but the same gr/ft as the s6, s3, int tips of the same wt rating.
On trout weight scandi lines I still tend to use these Replacement Tips (“light t-tips”) on lines that have been designed for tips, equivalent to a scandi line that has been cut back a bit to carry a tip - a commercial example is the Rio
Scandi short versitip. But on a heavier scand head, or a scandi head like the Beulah elixer that has been designed with a bit heavier carrying capacity you would have no problem using these, or even s8 on the heavier ones.
A quick and dirty way to figure out if one of the replacement tips might work is if you happen to have a tapered leader/polyleader that you already know works with the head in question then the AVERAGED gr/ft of that one should work on the same head for the (mostly level) replacement tips. If the Rio
tip has similar averaged weight/lenght then the butt end of the tapered leader will likely have a similar or even greater local gr/ft, so the replacement tip should work fine. There are loads of tapered polyleaders, for example, with AVERAGED linear density of 5-8 gr/ft.
The advantage of the replacement tips is that they can be much lighter and usable on delicate lines like scandis. They give you more flexibility to use greater sink rates. The downside if that they are a little more expensive, and unless you have a very good flyshop nearby you probably will want to go looking for the right one online. This method is however WAY cheaper than buying a whole new line.
As always final validation will depend on trying it out, but I hope this gives you a few ideas.