It would depend on the wording of the class - Some are reg breeds only and some are m&m types. if its more sporty looking than m&m looking I wouldnt bother i'd find an alternative class to enter such as showhunter and plait it up. Connies do border on looking more show than native anyway
Thanks for replies folks - not sure what she is crossed with so will think again as to what to show her in. I will try to put some pics on PG later but my tech knowlege is about on par with showing knowlege lol. Daughters pony is easier to class - pretty little coloured so finding something to do with him is easy (unlike him, little swine!).