Oh, well it's been a while. ;)
But finally, after reading numerous threads like
THIS, I went for a calibrated set of Crawlers with burnt chrome covers for my wine-red LP Studio. Pics to come, the ambient light just isn't very good today.
Since I wanted to pay via Paypal, I ordered at
Felineguitars. Everything went well - he even forwarded my special requests regarding the looks of the burnt chrome covers. Thanks a lot, Jonathan! :D
I installed Seymour Duncan Triple Shot switching humbucker frames as well, ergo I have extra amounts of cable and soldering joints in the guitar. So I don't know if the pickups would sound different without them.
However, the tone is exactly what I have been looking for!
Since I had replaced the tone pots in my LP Studio with C-Switches and usually run the signal via an ultra-low capacitance Elixir cable into a Lehle Sunday Driver SW buffer, the resonance frequency of the stock 498t bridge humbucker was so high without extra capacitance load that its screaminess was really painful.
In contrast, I can run the bridge Crawler without extra capacitance load and it sounds beautiful. Very nice. The neck Crawler is a bit more rounded than the 490r as well. Sounds great.
Furthermore, the Gibson pickups were really prone to microphonics, e.g. you could hear the rattling of the security locks via the amp. The Crawlers are really an improvement in that regard.
Currently I have the impression that the resonant peak is not as strong as it was with the stock pickups. It might be due to the extra amounts of cable and soldering joints. Or it is an effect of the good wax potting. Or it is just a misleading impression, since higher frequencies are perceived as way louder than lower frequencies.
But these were just first impressions. I really need a few weeks to explore all the new sounds (Triple Shot switching offers series, parallel and single coil modes...). :D
Thank you for all of your suggestions! :D