You can use the HTH kit to 'spare' the K2006 . . . and I would recommend doing just that. But, without accurate FC, CH (which you don't appear to have) or CYA . . . you are flying blind, now, and next year. You do NOT have to replace the kit annually!

The fact is . . . you can get lucky, and be OK without the kit. Lot's of time, lucky is better than smart or skilled. "So, you ya feel lucky? Do ya?" (Sorry, couldn't resist.)

It's your choice of course.

But the correlation between no K2006 and solution-resistant problems is so high, I'm beginning to think that I may set a policy next spring that, during peak periods, we simply won't try to help people unwilling to get a HTH 6-way or better. I think it's likely we can help more people that way.

It's past peak, now, so if you feel like being a guinea pig test subject, so we can see if we can help without good info, I'll go along . . . for awhile.