Scott, I have to force myself to put on my gear in the summer. As I'm pouring sweat, I keep reminding myself sweat wipes off..... I took a nice slide on the slab bout 12 years ago with nothing but a helmet. I don't reccomend it. A few broken bones and a little RR was all it took for me. After that spill I bought so much gear I looked like the freakin michelin man riding around. Now I just try to find a balance between protection and comfort. (which is very elusive). My biggest issue is pants. I end up riding in jeans a lot in the summes cause most pants with armour are just too hot and bulky. I have several different kinds and hate them all. I recently bought the bohn armour pants but they are the same story, bulky as hell/uncomfortable. They seem like they would provide good protection if you could stand to wear them.
I think I will try some fieldsheer mesh pants next. Maybe Veloce will come out with something practical someday....... hint, hint......
Velo who ?!?!
There aren't that many options out there yet unfortunately. Each manufacturer tries it's best to create airflow to desipitate the heat. However, standing still you still sweat like a pig when it gets really hot. I like the idea of wetting your t-shirt, or get a one piece inner suit and dump it in ice water before you ride. The process of it drying actually evaporates heat / steam off your body. Just be sure to wear something perforated if you do that.
Another thing to consider is your choice of colours. I have been asked why we use Silver on the back of our suits. It is to help reflect heat, as opposed to absorbing it with darker colours like Black. I know Black is neutral and can match just about any bike or apparel combo out there... but realize that it absorbs heat. In summer, get flashy and wear lighter colours.
For helmet choices, you might consider a motocross helmet with goggles. It will allow more airflow around your head. Arai actually has a few cross over type helmets that fit the bill. Your assessment of the Bohn armour is unfortunately right. They do feel bulky. We are trying out some new padded shorts which I will post up soon. They are similar to the padded pants I recently offered.
There is a company by name of D3o from the UK which makes a special shock absorbing material. Much as I don't like to refer to competitors, they have released their own line of protective armour to retail customers. We explored a partnership with them, but this is pending for now. My caveat is that I am still not 100% sure there is enough material to fully absord major impacts - smart materials are great, however the laws of mass, weight and velocity still apply and there has to be sufficient decelleration for protection to be effective.