I think this offer could be characterized as "too" fair for the other team... I wouldn't be targeting Myers in this trade, as it appears he won't be developing into the next Chara anytime soon. He fits the bill of a more defensive shut-down type guy, especially with the addition of Ehrhoff in BUF and the potential emergence of others like Gragnani. If you want to include a Defender in your acquisition, I would shoot for someone who had more offensive potential, and a more "guaranteed" future of production.
Who are some other Defenseman on the other manager's roster??
As for the Havlat for Stewart swap, this is precisely the kind of switch you should be looking to make. Selling on Havlat's current situation in SJ, pumping the tires of his potential season a bit, hoping that the other manager is down on Stewart, a guy who has the potential to be a multi-cat stud of the future on this STL team - hopefully Hitchcock got the memo...
Basically, I like the fact you are trying to buy low on Stewart, but I think you could do a lot better than shipping E. Johnson for Tyler Myers.
MounD - Double Threat FHL (18-19 champs)
10-Team Yahoo daily H2H Dynasty
3C, 3LW, 3RW, 6D, 2G, 7Bn (IR)
G, A, +/-, PPP, SHP, SOG, FW, HIT, BLK // W, Sv, GAA, Sv%, SHO
C: Bergeron, Barkov, Aho, Point, Kadri
LW: Marchand, Landeskog, Hertl, Marchessault
RW: Stamkos, Tarasenko, Laine, Palmieri
D: Carlson, Letang, Dumba, Weber, Pietrangelo, Ristolainen, Byfuglien*
G: Bobrovsky, Holtby, Lehner, Greiss-Varlamov
Farm: Turcotte, Cozens, Denisenko, Newhook // Sandin, Jokiharju, Dobson, K'Andre // Shesterkin