While the catch blocks are mostly fine in SP, on multiplayer servers they often randomly fail, and a technique used to stop this was using several catch blocks with connected subparts. Once my "Stronger Catch Blocks" mod (https://steamcommunity.com/sharedfiles/filedetails/?id=1672720926) was added to the PlanetsNoLag server this issue disappeared. All that is needed is to increase the <MaxResistedForce>, my mod uses a value of 2000000000. It previously used a smaller value that did not reliably fix this issue. Might be worthwhile to test lower values so that it's not so ridiculous - would be very tedious to test though.

Besides that - they're still too weak in vanilla. They fall apart too easily.