Yes we are still thinking about the BTM solution of making the required confirmations for generated coins higher.
However, I think it can be bypassed by any jump pool fairly easy. The pool simply creates a buffer of say 100K NLG and places this at the exchange. When the pool decides to mine blocks, the buffer is being sold. So if the pool gets 14 blocks, then 14K NLG is sold at the exchange. When the 14K mined coins are completely confirmed (which will take longer than normal), the coins are moved to the buffer at the exchange, so the buffer is back at 100K NLG again.
I think this technique might actually be used already, it makes the calculations by a jump pool very accurate because mined coins can immediately be sold. The buffer itself is a one time investment that can eventually be sold again.
So when the generated coins maturity confirmations is changed from 120 to 240, that would simply mean that the jump pool requires a buffer of twice the size to accommodate for the confirmation time..
So like BTM, it would require a huge confirmation time (maturity), like 480 (20 hours), 720 (30 hours), 960 (40 hours) or maybe even 1152(48 hours)... Each one requiring a larger buffer to effectively calculate the profitability for mining and selling coins right away.. And even with a small buffer it would work, it would just mean that the miner can't come back every hour and has to wait for the buffer to fill for a day or two..
The downside is that our dedicated miners also have to wait longer before their coins are matured. So I would very much like to hear how everyone thinks about this. Especially if you are a miner (dedicated or jump), please let us know how you feel about a higher maturity confirmation count.