I have a black ipa fermenting in a better bottle that I would like to bottle tomorrow. I have a bottling bucket with no lid, as well as a second better bottle. I need to add priming sugar to the beer and i was thinking of adding it to the second better bottle and then sending the beer like so: and then just bottling from the second better bottle. Does this makes sense or would just using the bottling bucket with no lid be easier even though it will result in more oxygen contact?
Yes, it would work, but a true closed racking system would have to evacuate any air from the bottom bottle in figure "A" before starting the transfer. Your call as to whether it's worth the time and effort.
The length of time during bottling is not all that great to be a concern for oxygenation. You have to crack the lid on a bottling bucket anyway, so air gets in there whether you have a lid or not. I don't think the closed system is worth the extra work. Secondly, I would also have a concern about whether your priming sugar is getting well mixed using a closed system.
Not at all worth the trouble of making that schematic, much less actually bottling that way. Unless you're really careless racking to the bottling bucket, you aren't going to introduce any more oxygen with that than you would with the better bottles. Besides, the yeast will scavenge tiny amounts of dissolved O2 (if present) during bottle conditioning in either case. As mentioned above, the bucket also has the advantage of making it easier to stir in your priming solution.
As an aside... 'Oxygenation' is, generally speaking, a term referring to introducing oxygen (O2) either from a bottle or from the air into a liquid. This happens intentionally before pitching (because yeast use the oxygen during growth and reproduction), or unintentionally after fermentation if too much splashing occurs during transfers. 'Oxidation' refers to relatively slow chemical reactions that occur as a beer ages whenever sufficient oxygen exposure occurs. Oxidation can't happen in the short time your beer is in a bottling bucket. Just avoid splashing and stir well but not so much that you're whipping air into it and you'll be fine.
Looks good if you own the BBs with spigots. You can add the priming sugar to the second BB, give a gentle stir with a length of PCVC, the back end of a plastic mash paddle, or whatever you have made of plastic or steel that you can sanitize. package from the second BB and enjoy!
It does look like it would work, but like everyone else who has replied so far, it doesn't look like it would definitely produce a better result than simply using the bottling bucket. You would have more of a challenge of mixing the priming sugar evenly with the better bottle, and probably a similar exposure to oxygen either way.
