decrease the cost of infect med kit and we will call it even =)
And this is coming from someone who buys ALOT of med kits though a map 4-7. The fact that you have to stand still to heal leaves you open quite a bit.
Have you consider increasing the cast time for medkits instead? give it more of a risk vs. reward effect. Half the time where i get incapped from spit is healing someone or getting healed not to mentioned high pounced charged and boomed.
EDIT:
Oh your where talking about !heal. Same Thing risk vs reward. Give it a uninterruptible cast time so infected have more of a chance to react and a server announcement. Seen something similar on a old LFD2 server worked out well.
15 points is a huge investment for anyone who isn't a really good shot and I notice most of the time 2 people on a team are getting over 50% of infected kills combined.
Etc. Jiggler, swatfish, Got 6 =P