Question--Jurme, You can build a tapered leader out of any Mono but Bugman's Maxima mono for leaders is sound advice. The best way to start is to buy a tapered leader and just add the tippet as needed. The transfer of energy down the line to the fly requires a tapered leader or the leader will fall back at the end of the cast as the energy stopped at the end of the line and didn't transfer down the leader. The attachment of the leader to the line is critical as you do not want a hinge. You should be able to take the leader in one hand and the line in the other and when you push together to make an ark it will be a perfect bend where the attachment is made. I use a needle knot. I also like to make the leader material 2/3 the dia of the line at this point.
My point is a tapered leader is only utilized if the energy moves down the line thru the leader to the fly. If the knot from the leader to the line is not correct the energy stops at this point and doesn't transfer down the leader and you lose the advantage of the tapered leader. Good luck!
Thanks, Perry. Another question. Some things I've read say you need a very limp leader for small flies and a delicate presentation, but a very stiff butt leader, preferably short, for large flies, in order to turn them over.Yep sure can! Not always some form the arc and cast well, some not so good. I dont use the loop to loop because it serves no purpose to me. I only change the tippit as needed. I had problems with hingeing on interchangeable sink tips that use loop to loop and the manufactuer changed them amd now they work well so I do use loop to loop on my line. Nothing is cast in stone as I am looking at furled leaders and they only come with a loop so I aint painting myself in any corner! LOL