XL = Extra Large. As in Omni XL
XLS = Extra Large/Spinning Mp. As in Ti Woody XLS
Both Vapcaps are the same length. The S has a spinning mp.
The Ti Tip costs almost as much as an complete M Vapcap with a SS Tip.
The SS Tip on the M is an entry level device. The machining is kept to a minimum to keep the costs down while maintaining functionality. There are no bells and whistles on the M.
Here is an M next to a Ti Woody. This one has a Blackwood body and a spinning burl mp. The M has a stem integrating the mp into a one piece Stainless Steel design. They are both the same length. They both have the same temperature indicating cap.
But the tips are different...
The M has two air channels along the tip exterior. These channels bring air between the tip and the cap retaining before it is drawn through your bud.
The Ti Tip has 4 channels, twice that of the M.
The M has three orings to friction fit to the stem while the Ti Tip has four.
The M has five heat dispersion fins.
The Ti Tip has seven.
The Ti Tip has grooves that open up from the channels. The M tip has a flush end.
The Ti Tip has an upgraded, more open CCD screen that is crafted from titanium.
The M Tip has SS CCD screen with a tighter design.
The Ti Tip has an adjustable chamber with interior that allow you to set your screen depth and bowl size.
The M chamber is not adjustable.
These are all small differences that add up to a more refined titanium instrument and adds up to a higher convection experience with a greater air flow compared to the M.
Is the M a good vaporizer? Yes, it is. It's a fantastic vaporizer.
Is the M as good as the Ti Tipped vaporizers. No. Not quite. The Ti Tipped Vapcaps are premium vaporizers IMHO.
Are the Ti Woodies worth the extra cost? Yes, they are worth it. Plus they are fully modular so upgrading to other components, other models is fun and easy.
Which to get? Depends. The M offers an effective, durable, inexpensive introduction into the Dynavap line-up while the Ti Tipped Vapcaps offer a more finely milled instrument with full functionality and modularity.
Pick one. The one that appeals to you. Once you fall in love you can come back and get another. I think everyone should ultimately have one of each of the models; an M for out and about, a Ti Woody for the modularity and fun functional spinning mps and an Omni for an indestructible off grid, doomsday device that is the ultimate set it and forget it vaporizer that just loves water tools.