I always regret posting things like this, but it drives me crazy when people are wrong on the internet.

1) The total number of sleek amber, shield, and barrier locations is a fair bit less than 100, much less 150.

2) To the best of my knowledge, there is not now nor has there ever been a way for a player to reach a size greater than 'enlarged giant'. The secret leet way to achieve this is to start out as a giant-sized PC and eat cheap enlarge roots like candy. Sometimes y'all think too hard and try to come up with the apocryphal pen that can write in space when a pencil will do.