Slippage on RBCT-XUSD vs. RBCT-DoC

I’ve noticed that there is a lot more slippage in the RBCT-XUSD pair than in the RBCT-DoC pair. I’ve gathered this by my own trading experience. It’s also evident if you put in an amount like $1000, see how much rBTC is shown to be received, then copy that amount of rBTC and click sell and see how much $$ it will give you back.

I find that puzzling given that the RBCT-XUSD pool is about 10 times as large as the RBCT-DoC pool. Can anybody explain this?

Does seem to fit what I’m experiencing as well. Anybody from the tech department want to look into it…?