As opposed to just asking "what lock should I do next" I will request a more general and complete list so I will not have to ask at each level. If such a list exists please post a pointer, otherwise, perhaps the more experienced people here could debate for a while and create a list for those of us who are trying to learn (possibly post it in FAQs).
How I would like to see this list organised is as follows:
Key locks from beginner to expert
Key padlocks from beginner to expert
Combination locks from beginner to expert
Combination padlocks from beginner to expert
The "padlock" lists are for those who want smaller, more portable locks to practice on.
Would a list of inexpensive locks of varying levels of difficulty (ordered from beginner to expert) be of interest also?
I do not know if all types of locks are available everywhere (i.e. Are MasterLock locks available worldwide?) so we may want to have muptiple locks at each "level" so people will be able to find at least one at each level in their country.
Thanks in advance for either the pointer to the lists or your input in creating these lists.