Nine draw problems with new Crossover

Hi Winslow,Today I received a Hohner Crossover (in A) to replace the old (1995) second hand Blues Harp MS (also in A) that I have using with these lessons.  The new Crossover is great, except for one thing - I am having a lot of trouble getting it to sound with the 9 draw note.The only way I can get the 9 draw to sound is if I slur from a 10 or 8 draw to the 9 draw.  It sounds well then.  Otherwise it wont work.  If I dont slur then TB, lip pucker, even holding my fingers over 8 and 10 and drawing all give the impression that the reed is stuck.  Eg. if I try to include it in a major scale its just dead.  I dont get that problem with the old MS Blues harp.I am a beginner so I cant be sure if this problem isnt somehow related to technique. But like I say the 9 draw seems to work fine on the MS.I guess what Im asking is this - do you think that the new Crossover could be faulty?  If it is I will send it back.  But if the problem is just my poor technique I will work on that instead.cheersCharlie