So…putting several threads together it would seem that casting a full sink line is harder than a floating… not sure I agree but if LF says so it’s likely true…and each type line has different characteristics…so
what type of line is the best with which to practice…floating…full sink …sink tip…shooting head…???
Shooting Head.
Doug
Duh, what are you practicing? Distance? Presentation? Accuracy? What line do you fish with? What rod? Practicing your DH, recoil, slack-line, curve, ?
Practice with everything you got.
Its not a good idea to show up at the river/lake with a line you have not practiced with so practice with them all. :?
I just use one of last years lines. After I replace my lines I keep one for practicing on the lawn/street. That way I’m practicing with the same line I fish with.
Are you casting the line or perfecting your stroke.
Try to cast the heaviest sinking line like you do your floating line and then you’ll believe what LF says! 
If youve never tried it you cant dispute it!
Norm,I’ve cast them…e.g. 5wt full sink and 5wt floating and didn’t find a problem in the air…now getting them off or out of the water that’s different…and a sink tip is another matter…
Ray, so what type of line?
Gnu Bee Flyer…"Its not a good idea to show up at the river/lake with a line you have not practiced with so practice with them all. "…That’s too serious…sometimes I like to put on a new line and just go fishing 
JC…let’s say practicing timing and double haul…which line?
I would be interested in your opinion as to which lines are best for the things you mentioned???
Duck, practice with the same line use do most of your fishing with.
Delete please.
Your question refers to lawn casting, for that I use Shooting heads ~ while lawn casting isn’t the roughest environment that a fly line could see ( parking lot lines have it a lot worse. ), lawns and the debris that accumulates on them is tougher than open water.
Shooting heads are an inexpensive alternative, they are available in everything from floating to fast sinking and they are practical tools for practicing a number of casting techniques, other than just distance. One could always use an old or worn out full line for practice, but you’d have to ask yourself why would you want to practice with a worn out line? Are you practicing for the day you’ll use a worn out line to fish with?
All of my full line practice is done on water and it’s done with lines that are in their prime.
All the best, Dave
If you want to practice casting with sinking lines, you need not worry about curve casts, slack line casts, or recoil casting. The faster the sinking lines the smaller diameter they are. I think thats why a lot of people use a 5w rod and 6w line etc. etc. It could also be a hold over from years ago with the 5/6 etc rating.If you are doing this to better your stillwater casting, dh’ing and distance are what you’re shooting for. Accuracy would also be included in this game. Grab a box sit on it like you’re in a tube or kickboat and start casting. Video yourself.
A 9’, 9’6" or 10’ fast rod will be your friend.
You won’t pick up line off the water with a sinker like you will with a floater, you already mentioned that.
I’ve marked all my lines at 30’& 60’. Used Loons UV Knot Sense. Mark with a Sharpie and dab a little Knot Sense on it. One dab for 30 2 dabs at 60’. You can feel it in your fingers when it goes through on the cast and when your retrieving it. It won’t get caught in the guides either. It’s just to determine how much line you have out. With a little practice and a good rod you should be able to cast 60’+ in a little while. Strip out a little more and kick backwards.
If your practicing for river fishing- then nevermind.
RTJ
I would get my hands on the Rio LC line. The LC (lawn caster) line is made for the descriminanting caster who has some fine Oregon Rye Grass or Bent Blue Grass laid down and trimed to the regimental 3-32nd height that the line reccomends. I have found this combination can afford the caster a “best match” to real steam conditions and leave one hoping for a bright sunshine day and rising fish. This has worked for me. Good lawn casting.
PS:Cortland makes a lawn line also but the Pink color does not look as good as the Rio baby blue color. IMO
Jonezee…I was laughing before I got past the first line :lol: :lol:
Jonezee,
WHERE are the sites that we can look at the NEW lines?
What if you have the right line but NO lawn?
Thanks,
Doug
Duckster and Dave. Both of you guys have the best there is to offer for casting practice. The Eastmoorland casting pond. What a great place. Walkout piers, 360 degree pool so you can have the wind at your back. Go for it! Your FS and ST lines can get an honest workout. Lucky guys. Thats where I taught all of my boys to fly cast.
Please don’t tell me, after 7 years away, that is gone too?
Jonezee,
The casting pond only has water in it PART of the year. I don’t know what the dates are for filling and draining.
Eastmoreland Park is still there and the softball teams still play there.
Doug