New member catching up on old discussions and thought I'd throw in my 2 cents.
For trolling cranks, my standard set up is a med. action baitcaster loaded with 10# fireline crystal and a 24"-30" length of 12# FC leader material using a uni to uni knot.....no barrel swivel.
Counting wraps on the baitcaster allows me to take the guesswork out of line length / lure depth and quickly puts me back in the zone.
For the spinning outfit when fishing topwater or casting cranks I've always been an 8# XL guy however, 2 years ago started using 8# Vicious (low vis) and don't think I'll go back. If I'm finesse fishing clear water for eyes I'll switch spools and go back to 4 or 6# XL. This year I may try out one of the new flouros from P-line.