Alchemy often has problems with drain limiting how many preparations you can make. I think I've got a way to fix that. Hermetics can summon Spirits of Man with Inherent Spell. This can be used to have the spirit cast Increase Will and Increase Logic on you. If you summon a force 6 spirit and get at least two successes, you don't even need to bind it.
At this point you'll have around 19 dice to drain resistance, allowing you to safely prepare lots of stuff, like some Increase Will and Increase Logic potions in case you need them in the field. After that, you can prepare a few batches of Increase Reflexes at Force 4 to 6 in relative safety, or make some Increase Reaction/Intuition for extra dodge and initiative. If you're looking to live on the wild side, you can stick a fireball trap on a credstick or two.
Best of all, since all of these can be touch triggered, you can mix them all together and activate all the buffs simultaneously. One simple action gets you upwards of +8 defense, and an extra 12+2d6 initiative.
Yeah that's a lot of karma for preparations, but isn't it worth it to be able to stack all those buffs at once?