yes, i get that, and you're right, it is all about balance, one thing is for certain, you "should" get more for 20 turns, but how much is the question, the numbers i gave were examples, those people who want the most xp / turn, and have to time / inclination to do so, can continue to use 1 turn and get the most out of it

While I don't entirely agree on increased exp, unless it's balanced correctly. I do strongly agree that 20 turns should have more benefit though, it's there after all it should be put to more uses. The current use is only to steal more money from players. 

I think you should make it so that 20 attacks gives more exp, but not so much that if you have time to attack more, the 1 attack will give you more overall. For example, maybe 20 gives double or triple exp so that if you just want to do 100 quick attacks you can gain more, but it's not a huge advantage over people who may do 1000 attacks at 1 turn each.

Why not instead of it being on the "Explore" feature it could be in a different feature on where you get more exp for a fixed amount of turns. Lets say Monster Farm from Round 3 (I was going to make this its own thread but thought that maybe it would be better suited for here). Same principles from R3 the higher you go the more difficult the monsters become and the more exp you get. 

i dont know what to say