I would tend to agree with a skilled pilot being able to recover at a higher altitude. The real issue is with a yaw issue at really low altitude you have little room for recovery. No to mention, when those helis are coming in hot and not hovering for a drop, 90+ mph even a 5 lb object can potentially be damaging.
CC and Debit are one in the same here for the most part when they are tied to your bank account. You might have a choice (if they ask), or they just run as credit/debit depending on the vendor. Either way it pulls from the same account so you shouldn't assume they are using a CC. That said, yes credit is a huge problem in the US.
On a side note cash in Canada (via coins) was great. Looneys and Tooneys were perfect projectiles for strippers.
It's probably for marketing or CYA nonsense, but they failed. If they were smart they would have marketed it as "Pregnancy Mode". Enabling this mode will increase the chances of having a boy. In China I think this would be a genius marketing scheme.
At my school for my undergrad and grad programs we used a various set of IDEs and OSes. The only time we needed to be locked into a vendor for dev tools was when the class was targeted at that. A large % of the time we could use whatever worked for us.