I have one of those Wulff Tapers. Freaking one of the most sweetest casting lines I’ve ever used. Never thought to try their Intermediate lines. Wish I had.Wulff Triangle Taper Intermediate. Easy casting. Full intermediate line. The saltwater is for larger weights .
When it comes to Immediate lines, probably the best way to figure out best how to make best of what you got is to time the sink countdown. That’s the indirect method of figuring out the depth.