i've been having some problems with my flyline being twisted when I strip it for casting and definite loop indications left in it when lying on the water.

i assume that the twisting occurs during strippin a streamer or fly quickly and the loop 'shadows' comes from being stored on the fly reel. (i had just pulled all of it off the reel, cleaned and untwisted it before my trip Sat but all the problems came back. )

i could lay out a long length of line on the water and reel it back in to get rid of the twist for a while, loop 'shadows' remained. The line is not very old (8#)

Three questions:
1. is this a correct assumption?
2. if I'm warmwater fishing is there a significant
issue with putting a small swivel on the end of my
furled leader and using a 2 ft tippet?
3. is it normal practice to store the line off the reel on
a 6 to 8 in storage spool after cleaning it?

Thanks for any insight.