Hohner Crossover Tuning

Hi David, my name is Andy. I'm working through tongue block study 1. I got a Hohner Crossover in A. While playing along with Walk with Me I noticed i was very sharp. You are spot on perfect according to my tuner, and I'm showing between 15 and 30 cents sharp on every note. It's averaging 25 cents sharp on the blows and about 15 cents sharp on the draws. I've got another harp brand in C that generally plays more in tune, although the tone and response isn't as nice as the Hohner. Have you noticed any tuning issues with the Hohner Crossover? Is this me or the harp? I feel like I'm playing nice and relaxed with the tongue down and getting good tone, just very sharp. Is there anything I can try to get it in tune? I've had it about a week, and it's not the end of the world while I work solo through levels of achievement, but it's certainly something I'd like to figure out before playing with other folks; 30 cents sharp sounds pretty rough. Your course is great, so I'm sure any of your advice will help! Thanks!