I've found SA to be a big relief after MoF. Until Stage 5, anyway.
If I remember correctly, Stage 2 was Parsee's area? I don't actually spam bombs that much in SA. Unlike most Touhou games, bombs are pretty hard to recharge, considering they come directly out of your power gauge. And without a decent power gauge, you're not going to deal much damage to the bosses that come up.
If you want to get the most out of your bombs though, use Marisa + Nitori. Her bomb shields you AND blows stuff up. I haven't tried it, but I think they even work against the final/extra stage bosses during their spellcards.
Other favorites are....Marisa + Patchouli, for their variety of options (you can use focused firing, wide spread, horizontal spread, and I forgot the last one). And then there's Reimu + Suika if you're having a hard time with collecting points without dying.