The "dunny ring" you can get from AHPC (goodall design) is good. But in saying that it is good cos it comes on and off neat. the disavantages are when pulling in and out is harder due to the angle. since ring mounted on pole it wants the twist the pole, need longer haltyard and sheets.

THe triangle chute is good also. You can order one from me ($80 for chute mouth $80 for bag) Advantages, can ust any size pole within the rules and alloy or carbon. Mouth can be made with your choice of colour,
disadvantages. pain to change from spin to cat rigged unless you have 2 bridles, or use the one and have to rethread the bridle thru the chute

Matt