I trade the roll, best strategy is on the very opening the fill will often be at a good price improvement, e.g. yesterday I was bidding 50 at 30.5 got filled at 29 on the open.
I'm bidding 21.5 at the moment. The main problem imo is that the algorithm is FIFO so it can't really be traded like a STIR spread.
Best plan is probably to average it around a mean, maybe about 27 🙂