The difference between R4i gold 3ds rts and R4i sdhc 3ds rts?

At present,the welcomed r4icard are belonged to r4i gold 3ds rts and R4isdhc 3ds.They share many commons as well as difference,so let’s read following comparison features between these two cards to get further knew about them .
Commons
1. Both of R4isdhc 3ds rts and r4i gold rts 3ds  can compatibility 3ds and dsi latest firmware. ( these two flashcart in our store have been preflashed and can directly work on your console without any updating ).
2. Added RTS,RTG function.
3.Easy to use,friendly GUI,stability and price is budget.
4. If you want play GBA games with any of these two cards,you still need a EZflash 3 in 1.
Difference
1.Came from different team,r4i gold 3ds from r4ids.cn,while r4isdhc 3ds is from r4i-sdhc.com.
2.R4i gold 3ds use famous wood firmware,so it is more popular.
3. r4i sdhc 3ds rts card is a new card from r4i-sdhc.com to support 3ds and dsi latest firmware,while r4i gold 3ds was the first card to be annouced support 3ds and dsi latest firmware directly.
4.R4i gold 3ds with a quicker firmware updating.
5.r4isdhc 3ds flashcart was from a old flashcart company.
Both of these two 3ds flashcart are good. They dont have much function difference,only distingish lies in r4i gold 3ds uses famous wood firmware,with with a more quicker firmware updating.
Then,r4i gold 3ds or r4isdhc 3ds,which one is your favorite ?