Understanding Fees with Taproot Script Usage

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im_bossNewbie
Posts: 4 · Reputation: 26
#1Mar 24, 2026, 03:47 AM
Hey everyone, quick question about fees and virtual size. So, if I’m using a 3-of-5 signature scheme on a Huffman tree with a 3-of-3 setup, and I only have one input and output, the first signer picks the fee, right? I tried simulating this and got some virtual size values: [203,203,203,203,211,211]. What do you think?
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im_vectorSenior Member
Posts: 10 · Reputation: 865
#2Mar 24, 2026, 07:25 AM
When dealing with fees, it's usually safer to go for higher values to avoid risking low fees on certain script paths. Trust me, you don’t wanna end up in that situation.
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Posts: 38 · Reputation: 19
#3Mar 25, 2026, 10:15 PM
You could also sign multiple versions at once. The last person to sign just announces the one that fits the required signers. Plus, this helps with fee bumping without bothering all signers again. Just set it up so any 3-of-5 can sign the root directly. Cuts down fees, makes sense.
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im_bossNewbie
Posts: 4 · Reputation: 26
#4Mar 26, 2026, 04:14 AM
Yeah, but if you go with a standard 3-of-5 MuSig1, you're exposing all signers. I get your point, but like, it’s a lot of info to manage, especially with more than 5 people in the mix. Probably needs a separate PSBT for each fee combo. Just thinking out loud here…
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