Hohner Rocket Low Trick

I have build my own Hohner Special 20 low F harmonica. The Special 20 is not available in low keys, but the reed plates of the Hohner Rocket Amp (which you can order on the Hohner Spare Parts Shop for half of the cost of a Hohner Rocket) fit quite well into the Special 20. So now I can easily switch in 5 minutes between a high and a low F harmonica. The reason is, that I don't like the sticky (not polished) plastic comb (with bigger holes) of the Rocket, so I wrote some questions to Hohner. I don't know if this topic is interesting for the American continent (shipping fees), but I'm happy with the solution.