First off all mine are spooled with 30-40lb mason line, and then I'll attach different leader types for different species. I use a large ball bearing barrel swivel or even a large snap swivel at the end of the main line to interchange leaders quickly.
Walleye - usually a 10-12lb mono or floro leader with a small treble and live minnow, or a fireball jig tipped with a live minnow through the tail so it can swim around.
Pike - homemade quickstrike rig (30-50 lb steel, and this year experimenting with some homemade titanium quickstrikes) with a big smelt, sucker, chub, tullibee, sardine, mackeral, etc. Set anywhere from right on bottom to just under the ice.
Burbot - any kind of fresh bait, such as smelt or cutbait set on bottom with 1 or 2 trebles. And when using a tip-up for burbot, don't always expect them to take line and set the flag off, alot of times they just sit there with the bait and don't move, so check them every half hour or so to see if theres anything there.
I've never used a tipup for perch, its just never been worth it when the action is usually good enough with just jigging, and if I do need a second line for perch I'd rather just use another rod with a slip bobber, I find a tipup a waste of time for perch fishing.
