OK, these are mostly aesthetic changes, but my first question is how to disable IC2 tin and copper and replace it with redpower 2 tin and copper in technic. again, mostly a aesthetic change and not absolutely necessary, but I do like the overall look of of the RP2 ores over IC2 ores, despite having the same functionality.
Second question is: is tekkit, despite being DESIGNED for SMP, able to be played on SSP? just curious, not really going to play it in SSP, although I do like the fact that it has all the 1.2.5 bonuses and iron chests.
Last question: what's so special about volcanos? yeah, I get that they're bad*** places to live on (especially the shield ones), they're the sole providers of basalt and friends, they provide a near infinite source of power for the geothermal generator which is part of another mod anyway, the have a long vertical shaft of lava going almost down to bedrock although I do see shield varients with shafts only going to layer 64. But it seems like they're just THERE and not important.
well, those are mostly not important and/or aesthetic and not game-breaking, but thanks in advance to whoever answers any of these questions.