I had hot starting problems with my 103" and resolved with a high-torque starter.
To my mind, compression releases are an answer, but not necessarily the best one. I know this idea goes against popular opinion, but look at it this way. Compression releases are unknown in the world of high performance, high compression automobiles. Motors with 8 cylinders and much larger displacement with compression ratios north of 12:1 crank right over without compression releases. What's the difference? Why haven't some engine builders even heard of compression releases? Because the larger, more powerful starters used on cars eliminate any need for them. Motorcycle starter specialists like Tech-Cycle and others understand this fact and have developed powerful, high-torque starters, some no bigger than your stock starter, that easily crank over the largest, highest compression bike motors out there. And they do it without the need of compression releases. Personally, I think these high-power starters are the simplest, most reliable solution. The one downside is that they aren't always the least expensive solution though, in some cases, they can be. In my case, it cost me only $330 and about 30 minutes time to swap out my stock starter for the high-torque starter I'm using now, so the starter was the simplest, easiest, and cheapest solution for me.
Understand that the last thing I want is to start a 'compression releases vs starters war'. It's not about that anyway because there's no question both options work. I'm just offering a little food for thought for those who don't relish the idea having to remove their heads again to fix their hard starting problems.