The FMS 118 has a preheat tube & is made of stainless steel, coming in at a svelte 146grams
or you could combine the best features of both models.....
Voila...the Frankenstove.
Preheat tube from the FMS 118 & the titanium legs/pot support from the FMS 117t.......118gms
A straight forward switch & swap.
Both models have good simmer adjustment & a fuel sucking blow torch mode.
With a wide burner head, more suited to wider based pots than the tall, narrow & skinny.