Submitted by jonah1005, also found by WatchPug
The sanity checks in rampTargetPrice are broken
SwapUtils.sol#L1571-L1581
If futureTargetPricePrecise is smaller than initialTargetPricePrecise 0.01 of futureTargetPricePrecise would never larger than initialTargetPricePrecise.
Admin would not be able to ramp the target price. As its one of the most important features of the customswap, I consider this is a high-risk issue
Heres a web3.py script to demo that its not possible to change the target price even by 1 wei.
None
Would it be something like:
I believe the dev would spot this mistake if theres a more relaxed timeline.
chickenpie347 (Boot Finance) confirmed 
