Under 100g is not logical, so I have doubts. As said, the rod will curve significantly less and thus it will impart less progressive elastic energy to the lure, but the lure can be jigged (just differently, not slow pitched with the elastic jump action from the rod; it will go more towards the fast jigging movement on the lure's way up, or other methods such as long fall can be done). As an indication I will give it a range of 120g-340g to the P1. About the P2, I expect it be around 200g-500g, and for the P3 like 400g-800g. In one conversation, A Ka himself told me that there is no need to buy all 3 powers. He was like buy the 800g max rated version and you are 'good'. One main reason someone will want to buy say 2 versions is if he intends to fish the slow pitch method in way different zones of water depths, like 40-70m, then in the 180-400m range, where he will need a Power 0 or 1 and a Power 3. But getting a power 2 is a waste unless the person will definitely be jigging with lures not exceeding 500g (650g for SJ III) and thus will not need the 800g.Yes that May be all true but the question is how light can you go with the max being 340g. We know that if the jig is a wider body and the current is strong it will give more resistance to a lighter jig. But in perfect confirmations will the P2 work a jig under 100g?
By the way, how you compare the R to the S? It is something I am considering now for slow jigging with heavy lures given that the S is out of reach and that the SE is not convincing and seems significantly overpriced. I read that the R is a stripped down version of the S. It has Alconite guides which I do not mind given the rod about 100 USD less expensive, but the difference of 5 Kg in max load at 60 and 90 degrees put some doubts about the blank being same. I mean if it was the same blank, the ratings would have been very close; neither the guides alone nor a difference of a few milimiters in diameter can make a difference of 5 Kg.
I like the idea of having a rod that has a proper action and is elastic enough for slow jigging in deep waters but have enough reserve to tighten the drag and pump the fish without any worry that the rod will break.