Sounds like your palate really likes sweet stuff if you thought that was dry

Your 1.040 batch is sitting at about 14.6% ABV. I don't know if this is a Trad, or what... Besides what I've suggested so far around balance (blend, oak, acid), I think you're asking how to bring down the SG from 1.040??? IMO, it get's a little messy, but two immediate thoughts I have are:
1 - The worst idea is to add water, but it will reduce the SG. Adding other juices that have a lower SG than 1.040 will also dilute the SG and ABV. Could make it worse.
2 - You can fortify this batch with another alcohol. A fine bourbon, rum, or vodka. This will increase the ABV and dilute the SG at the same time while bringing some balance to the sugars.
If it was me, I'd sit on that batch and look to blend it. I have a few bottles from a failed high-ABV experiment that are really sweet (cordial-like), and I've let it just sit for over a year. It actually has a great flavor as it developed some caramel notes from the Hungarian oak. I also have what may be one of the best Trads I've made that I'm itching to tweak as it just seems like a tad bit more sweetness (SG is 1.000) would make it better. I'm going to experiment with blending the sweet Trad with this dry one tonight.
Regarding your dry Trad, I'm a bit confused. You're making mead. If you don't like the flavor of the honey you used, why did you use it? To me, I always try to bring out honey notes in my meads regardless of using fruit, herbs, or whatever. Maybe you're thinking it's too strong of a honey flavor??? Again, I'd refer to 'balance'. Oak and acid may help depending on how 'dry' it really feels/tastes. Maybe mix up a 10% tartaric acid solution, take out some (3-6) shot glasses, put 30ml/1oz of the mead in them, and use a dropper to test what the acid does. I usually start in 2's --> 2 drops in one, 4 drops in the next, 6 drops in the next. Take it too far to where you really don't like it. This helps train your palate for what too much acid might be. You might find that the acid brings out different nuances and tones down the 'honey taste'. Or, just sit on it for awhile longer.
