I really like what VFat are doing, and I can see you are developing fast, so I hope you can consider this unique feature that could be easy to add, will reduce IL, and no one else offers...
Typical auto rebalancing, like on Vfat now, acts like this: When the range high or low is hit, it shifts the whole range to the middle again.
A far more effective rebalance would be to shift by a smaller amount on reaching the high or low - say +2% - but the total range be 10%, so it has plenty of room to go back down. Essentially, it is nudging the range up and down to keep in range, rather than jumping and causing much more considerable IL.
This could easily be added by providing a centre range width setting, and then a +/- setting for the shift. Under the hood, it's just a calculation for the new range, when rebalancing occurs.
thanks! Anthony.