I think you have answered this question yourself........
If you want to jig 200 gram jigs but maybe something a bit heavier occasionally......then you prob want a rod that can jig 150 to 400 grams right?
A pe 5/6/8 would go well but Pe 6 would do the job nicely.
The 300 to 400 gram jig rod wont work the 200 gram jigs so well...too stiff.....otherwise it would be a 200 to 400 gram jig rod.........this is what the manufacturer recommends to get the best out of the rod/jig.......I think a good place to start would be a rod that can work 150 to 400 gram and go from there.
The metaloid specs look handy and close to what you are seeking.........sell the braid(or put on another reel) and put some good stuff on there ! like gosen/tasline/varivas......200 to 250m of Pe 6 of the afore mentioned and mono backing and your away...........the thinner line will get down quicker and the lighter jigs will work better for it as well.
With Pe6 a leader in mono in this range would be good 100/120/130 pound.......If i was using pe8 i would use 150 pound.......
For PE6 id go 130 pound "varivas shock leader"...thin for its strength......supple and doesnt develop memory in a hurry.....Good price too....Hope this helps you young man
Once the idiots turn up..Im outta here...No time for Drama Queens.