I've just received and installed 12 sets (not mine) and I have to say they look great. The covers are an exact match of the classic 109 covers and in my opinion more aesthetically pleasing than those currently available from a ScubaPro dealer. I'll attach pictures below so you can judge for yourselves.
The new covers were a little more difficult to install than the part I replaced it with, however when compared to a new old stock part I found the level of difficulty about the same. This is to be expected as time and pressure tend to compress the rubber parts. Old shoes are easier to put on than new ones too.
The exhaust tees are equally impressive. They look great and fit the exhaust flange very well. They install much easier than the ScubaPro universal tees. At first I was concerned they may fall off too easily; however, after pulling and tugging on them, I don't think that will be an issue. I've not test dived any yet, and to be sure I will pass a string through the tees and attach to the hose for the first set of dives-but again, I don't think there will be a problem. As I write this I think the easier to remove and install tees will have the advantage over the hard rubber models in that one can remove them and dry the flange and case after a day of diving to help prevent corrosion.
Kudos to Bryan for his perseverance in getting these parts manufactured and for making them available to us lowly owners of classic diving gear.
Long live the 109!
Convert your rotten old 109 from this:
In the above photo the new silicone cover and tee is on the left, the older SP models in the middle, and the new style SP on the right.
Tee on a 108
A sincere THANK YOU to all at VDH who make this wonderful resource available and to all the thoughtful contributors.