The luff of the prospective sail is 1 foot longer than your (C22 MkI & MkII) 25.69Ft luff dimension.
This will make for a 'squirrely' sail especially in 'light' winds when the tack-line is normally pulled tight (spin tack pulled close to the foredeck/bow) for tacking/gybing and simply 'flying'; ditto too, when the sail is being used for beam-reach (and higher) sailing when also the tack line is 'tighter'.
Unless you want to use this sail for *exclusively* for broad reaching and in 'higher' wind-ranges .... I'd 'pass' on a sail with its too-long luff length, .... unless you want to go through the 'bother' or expense of 'alterations'.
Another consideration - if you plan on using a 'chute-scoop', 'sock', etc. to launch, etc. the dimensions of the sock, etc. when fully 'up' to deploy the sail will have to be 'deducted' from the spinnakers luff dimension ... and THIS sail is already with a TOO BIG luff dimension for your boat.
Normally, A-spinns dont use any poles at all; but, you 'can' attach the tack of an asymmetrical to a 'pole' end - especially useful for 'dead downwind' sailing which is quite 'difficult' for an asymmetrical because its normally 'tacked' to the boats centerline and therefore easily 'shadowed' by the mainsail .... the 'pole' is used to get the sail's tack 'out and away from the boats centerline and into more 'undisturbed airflow' --- just like a symmetrical spinnaker.
Summary Rx: Sail has a TOO BIG luff dimension for your boat. I'd 'pass'.
