Helix Update

I tried to climb to the second level without a helix, which I couldn't do. The next step was minimize the turns in the helix and I was able to get away with only 2. This did leave me with a higher grade than desired. I did some testing and ran with single engines and one and a half times the normal train length and I didn't have a problem so I decided to stay with what I had and press on.
The problem was that an extra turn of the helix meant that I had to come out of the helix higher than a bridge that was right at the exit of the helixe and then I would have to work my way back down so the switching could be performed at the next town.
No problems were noticed right away because one of the groups that comes here regular runs the trains a little faster and they made it up the hill until a yardmaster overloaded the train. Then a new group of people started coming and they operate a bit slower than the first group and for three straight sessions we needed helpers. I don't mind helpers it adds a little to the session. However this helix is meant to be covered up and that won't work with helpers.
Now I must decide on a new plan. I made plenty of measurements and the only good one seems to be that I must raise the bridge. There were other options and I liked some of them better, but the only one that works all the way around is to raise the bridge.
This will take some time to figure out if it is the right thing to do. In the mean time I plan to add an engine to all trains going uphill and I will eventually double head the down hill also. Two engines per train has been the plan all along, I just had to get to it. I fixed issues with the worm gear on the Proto engines that already had decoders and added them to the trains. I have also installed decoders in 6 more engines and they'll be ready to add shortly. I do have to watch out because I'm sure I'm about to overload the single Digitrax booster I have.
The good news for some of my operators is that there will be a couple more steam engines to run now.