Can I suggest Tiger accept "proof of transfer"as evidence of fund deposit and increase our purchasing power so that we can trade immediately? This is especially important for USD deposit as USD deposit during US trading hours cannot be processed until the next day and hence we cannot trade. IG markets has this feature for many years - I can upload "proof oftransfer" and limit will be raised in few minutes so that we can trade.
Bitcoin technology is still evolving and progressing. The moment some Mathematicians come up with efficient method of mining, then the price will colapse