Taigen Heng Long 2 4ghz rc pro tanks

Here is my new Taigen- Heng Long 2.4ghz rc tanks they have metal gears ,metal tracks, the new 2.4ghz radio with the new Taigen electronics such as rx board with cooling fan new much louder speaker and new smoker units that lets out a lot of smoke. The snow leopard came with a weak bb unit and the panzer 4 has a very strong bb unit. Also the snow leopard has the machine gun led light under the gun barrel which i do not like but the panzer4 machine gun lights up at the tip of the gun like it should. The paint jobs are AWESOME ON BOTH OF THEM. They are worth the money the panzer cost me $179.99 plus $15.00 shipping , and i got the snow leopard from the ihobby show that was here in cleveland Ohio this past weekend from the company called IMEXRC for $250.00. I think that was kind of high but i wanted it because i did not have any american tanks to my collection ( and besides it is 2.4ghz the older pro version comes with the 27Mhz radio which sucks ). They will be selling them soon , no pictures are on there website of the tanks just yet. If anyone can put up a video on how to change the bb unit on the snow leopard please do. THANKS A LOT and let me know what yall think of them.