Reproducible decisionFallback assumes seat
Tight $42k USDT payout · US → NG
The popular TRON-NG rail breaches the standard fee ceiling once slippage lands. A leaner Ethereum lane assumes PRIMARY, with a Base L2 lane held as fallback.
Task IDdx-ng-usdt-tight
Amount$42,000
StablecoinUSDT
RouteUS → NG
UrgencyWithin 24h
Fee cap45 bps
Presetstandard
★ Primary
USDT · ETH → NG21.7 bps · 16 min – 1h 10m↺
Fallback
USDT · Base → NG26.1 bps · 22 min – 1h 35mComposite94/100
Ranked candidates3
Sorted by composite quality94
#1
c-usdt-eth-ngActiveUSDT · Ethereum L1 · NG corporate desk
Ethereum L1 → admitted NG corporate desk
Total cost
21.7 bps
Timing
16 min – 1h 10m
Liquidity
Tier B≤ $120k
Cost
81
Timing
95
Liquidity
100
Policy
100
Fallback
100
85
#2
c-usdt-base-ngActiveUSDT · Base L2 · NG aggregator
Base L2 → multi-bank aggregator (NGN)
Total cost
26.1 bps
Timing
22 min – 1h 35m
Liquidity
Tier C≤ $90k
Cost
77
Timing
93
Liquidity
84
Policy
100
Fallback
70
40
#3
c-usdt-tron-ngActiveUSDT · TRON · NG OTC
TRON → Lagos OTC desk · NGN bank push
Total cost
41.4 bps
Timing
35 min – 3h
Liquidity
Tier C≤ $120k
Cost
63
Timing
89
Liquidity
91
Policy
0
Fallback
100
- ✕Total cost 41.4 bps exceeds Standard cap of 35 bps.
Rationale
Why this ranking- 1USDT · ETH → NG promoted to PRIMARY — composite 94/100. Total cost ~21.7 bps, p50 16 min.
- 2USDT · Base → NG held as FALLBACK — composite 85/100. Switch path stays inside standard preset.
- 3USDT · TRON → NG filtered — Total cost 41.4 bps exceeds Standard cap of 35 bps..
- 4Estimated total fee on primary: ~$91.06 (21.7 bps).