Can this new manuever be executed using a 2 turn as well a 2 bank, or must it always be executed with a 2 bank?

From the Rules Reference:

Quote

0. A sidesliP is an advanced maneuver using a turn ( 󲁜 or 󲁠 ) or bank ( 󲁝 or 󲁟 ) template

Left, right, up! down we have sideslips of every colour and direction! Blue , you want blue ? Just do a 2 turn! how about red ? oh we got red aplenty! one bank, three bank!

(Warning: Sideslips only go forwards, contact your local engineer before use.)